25156466025 has 12 divisors (see below), whose sum is σ = 41592023952. Its totient is φ = 13416781840.

The previous prime is 25156466017. The next prime is 25156466087. The reversal of 25156466025 is 52066465152.

It is a happy number.

It is not a de Polignac number, because 25156466025 - 2³ = 25156466017 is a prime.

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, 167709699 + ... + 167709848.

It is an arithmetic number, because the mean of its divisors is an integer number (3466001996).

Almost surely, 2^25156466025 is an apocalyptic number.

25156466025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25156466025 is a deficient number, since it is larger than the sum of its proper divisors (16435557927).

25156466025 is a wasteful number, since it uses less digits than its factorization.

25156466025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335419560 (or 335419555 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 42.

The spelling of 25156466025 in words is "twenty-five billion, one hundred fifty-six million, four hundred sixty-six thousand, twenty-five".