Search a number
-
+
52502501025 = 355213664799
BaseRepresentation
bin110000111001011001…
…001001011010100001
312000111222201101200000
4300321121021122201
51330011120013100
640041434450213
73536026616052
oct607131113241
9160458641600
1052502501025
11202a2325117
12a212b93969
134c49366670
142780c32729
151574416900
hexc396496a1

52502501025 has 72 divisors (see below), whose sum is σ = 105022444800. Its totient is φ = 25847346240.

The previous prime is 52502501003. The next prime is 52502501047. The reversal of 52502501025 is 52010520525.

52502501025 is a `hidden beast` number, since 5 + 2 + 502 + 50 + 102 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (52502501003) and next prime (52502501047).

It is not a de Polignac number, because 52502501025 - 25 = 52502500993 is a prime.

It is a super-2 number, since 2×525025010252 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 52502501025.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 253425 + ... + 411374.

Almost surely, 252502501025 is an apocalyptic number.

It is an amenable number.

52502501025 is an abundant number, since it is smaller than the sum of its proper divisors (52519943775).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52502501025 is a wasteful number, since it uses less digits than its factorization.

52502501025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664837 (or 664820 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 27.

The spelling of 52502501025 in words is "fifty-two billion, five hundred two million, five hundred one thousand, twenty-five".

Divisors: 1 3 5 9 13 15 25 27 39 45 65 75 81 117 135 195 225 243 325 351 405 585 675 975 1053 1215 1755 2025 2925 3159 5265 6075 8775 15795 26325 78975 664799 1994397 3323995 5983191 8642387 9971985 16619975 17949573 25927161 29915955 43211935 49859925 53848719 77781483 89747865 129635805 149579775 161546157 216059675 233344449 269243595 388907415 448739325 648179025 700033347 807730785 1166722245 1346217975 1944537075 2100100041 3500166735 4038653925 5833611225 10500500205 17500833675 52502501025