25256565027 has 12 divisors (see below), whose sum is σ = 36642420360. Its totient is φ = 16763533728.

The previous prime is 25256565017. The next prime is 25256565041. The reversal of 25256565027 is 72056565252.

25256565027 is a `hidden beast` number, since 2 + 5 + 2 + 565 + 65 + 0 + 27 = 666.

It is not a de Polignac number, because 25256565027 - 2¹¹ = 25256562979 is a prime.

It is a super-3 number, since 3×25256565027³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (25256565017) 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, 6179202 + ... + 6183287.

It is an arithmetic number, because the mean of its divisors is an integer number (3053535030).

Almost surely, 2^25256565027 is an apocalyptic number.

25256565027 is a deficient number, since it is larger than the sum of its proper divisors (11385855333).

25256565027 is a wasteful number, since it uses less digits than its factorization.

25256565027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12362722 (or 12362719 counting only the distinct ones).

The product of its (nonzero) digits is 1260000, while the sum is 45.

The spelling of 25256565027 in words is "twenty-five billion, two hundred fifty-six million, five hundred sixty-five thousand, twenty-seven".