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25275553025 = 521291783131
BaseRepresentation
bin10111100010100010…
…100101010100000001
32102020111102010111112
4113202202211110001
5403231020144100
615340022453105
71553231440652
oct274242452401
972214363445
1025275553025
11a7a04330a8
124a94894195
1324ca654a48
14131abd5529
159cdea2b35
hex5e28a5501

25275553025 has 12 divisors (see below), whose sum is σ = 31366002864. Its totient is φ = 20204754000.

The previous prime is 25275553007. The next prime is 25275553117. The reversal of 25275553025 is 52035557252.

It is not a de Polignac number, because 25275553025 - 212 = 25275548929 is a prime.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 359291 + ... + 423840.

It is an arithmetic number, because the mean of its divisors is an integer number (2613833572).

Almost surely, 225275553025 is an apocalyptic number.

25275553025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25275553025 is a deficient number, since it is larger than the sum of its proper divisors (6090449839).

25275553025 is a wasteful number, since it uses less digits than its factorization.

25275553025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784432 (or 784427 counting only the distinct ones).

The product of its (nonzero) digits is 525000, while the sum is 41.

The spelling of 25275553025 in words is "twenty-five billion, two hundred seventy-five million, five hundred fifty-three thousand, twenty-five".

Divisors: 1 5 25 1291 6455 32275 783131 3915655 19578275 1011022121 5055110605 25275553025