Base | Representation |
---|---|
bin | 10111010101001000… |
… | …010001100011101001 |
3 | 2101122211000220212201 |
4 | 113111020101203221 |
5 | 402300420140203 |
6 | 15301424140201 |
7 | 1544530116625 |
oct | 272510214351 |
9 | 71584026781 |
10 | 25050552553 |
11 | a6954249a4 |
12 | 4a31467661 |
13 | 2492b56280 |
14 | 12d8d86185 |
15 | 9b935ae1d |
hex | 5d52118e9 |
25050552553 has 16 divisors (see below), whose sum is σ = 27947883600. Its totient is φ = 22294137600.
The previous prime is 25050552529. The next prime is 25050552601. The reversal of 25050552553 is 35525505052.
It is a happy number.
It can be written as a sum of positive squares in 8 ways, for example, as 1853130304 + 23197422249 = 43048^2 + 152307^2 .
It is a cyclic number.
It is not a de Polignac number, because 25050552553 - 225 = 25016998121 is a prime.
It is a super-3 number, since 3×250505525533 (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is not an unprimeable number, because it can be changed into a prime (25050552503) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216883 + ... + 311671.
It is an arithmetic number, because the mean of its divisors is an integer number (1746742725).
Almost surely, 225050552553 is an apocalyptic number.
It is an amenable number.
25050552553 is a deficient number, since it is larger than the sum of its proper divisors (2897331047).
25050552553 is a wasteful number, since it uses less digits than its factorization.
25050552553 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 95532.
The product of its (nonzero) digits is 187500, while the sum is 37.
The spelling of 25050552553 in words is "twenty-five billion, fifty million, five hundred fifty-two thousand, five hundred fifty-three".
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