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25000005275 = 527142857173
BaseRepresentation
bin10111010010000111…
…011100111010011011
32101112021220212001022
4113102013130322123
5402200000132100
615252420513055
71543344352520
oct272207347233
971467825038
1025000005275
11a66993aa93
124a1854b78b
132485538a3b
1412d2389147
159b4bc3e85
hex5d21dce9b

25000005275 has 12 divisors (see below), whose sum is σ = 35428579152. Its totient is φ = 17142860640.

The previous prime is 25000005271. The next prime is 25000005287. The reversal of 25000005275 is 57250000052.

It is not a de Polignac number, because 25000005275 - 22 = 25000005271 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25000005271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71428412 + ... + 71428761.

It is an arithmetic number, because the mean of its divisors is an integer number (2952381596).

Almost surely, 225000005275 is an apocalyptic number.

25000005275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25000005275 is a deficient number, since it is larger than the sum of its proper divisors (10428573877).

25000005275 is a wasteful number, since it uses less digits than its factorization.

25000005275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142857190 (or 142857185 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 26.

The spelling of 25000005275 in words is "twenty-five billion, five thousand, two hundred seventy-five".

Divisors: 1 5 7 25 35 175 142857173 714285865 1000000211 3571429325 5000001055 25000005275