25500113012 has 48 divisors (see below), whose sum is σ = 50874227712. Its totient is φ = 11080483680.

The previous prime is 25500113003. The next prime is 25500113129. The reversal of 25500113012 is 21031100552.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54458 + ... + 232305.

It is an arithmetic number, because the mean of its divisors is an integer number (1059879744).

Almost surely, 2^25500113012 is an apocalyptic number.

25500113012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25500113012 is a deficient number, since it is larger than the sum of its proper divisors (25374114700).

25500113012 is a wasteful number, since it uses less digits than its factorization.

25500113012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286868 (or 286866 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

Adding to 25500113012 its reverse (21031100552), we get a palindrome (46531213564).

The spelling of 25500113012 in words is "twenty-five billion, five hundred million, one hundred thirteen thousand, twelve".