25256415155100 has 36 divisors (see below), whose sum is σ = 73075227849624. Its totient is φ = 6735044041280.

The previous prime is 25256415155077. The next prime is 25256415155123. The reversal of 25256415155100 is 155151465252.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (25256415155077) and next prime (25256415155123).

It is a congruent 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, 42094024959 + ... + 42094025558.

Almost surely, 2^{25256415155100} is an apocalyptic number.

25256415155100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25256415155100 is an abundant number, since it is smaller than the sum of its proper divisors (47818812694524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25256415155100 is a wasteful number, since it uses less digits than its factorization.

25256415155100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84188050534 (or 84188050527 counting only the distinct ones).

The product of its (nonzero) digits is 300000, while the sum is 42.

The spelling of 25256415155100 in words is "twenty-five trillion, two hundred fifty-six billion, four hundred fifteen million, one hundred fifty-five thousand, one hundred".