25038464156 has 24 divisors (see below), whose sum is σ = 44656121664. Its totient is φ = 12279700160.

The previous prime is 25038464153. The next prime is 25038464167. The reversal of 25038464156 is 65146483052.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25038464153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 891626 + ... + 919278.

It is an arithmetic number, because the mean of its divisors is an integer number (1860671736).

Almost surely, 2^25038464156 is an apocalyptic number.

It is an amenable number.

25038464156 is a deficient number, since it is larger than the sum of its proper divisors (19617657508).

25038464156 is a wasteful number, since it uses less digits than its factorization.

25038464156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31981 (or 31979 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 44.

The spelling of 25038464156 in words is "twenty-five billion, thirty-eight million, four hundred sixty-four thousand, one hundred fifty-six".