25525086138512 has 40 divisors (see below), whose sum is σ = 51317713402560. Its totient is φ = 12290165919360.

The previous prime is 25525086138511. The next prime is 25525086138551. The reversal of 25525086138512 is 21583168052552.

It is not an unprimeable number, because it can be changed into a prime (25525086138511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 261221687 + ... + 261319382.

It is an arithmetic number, because the mean of its divisors is an integer number (1282942835064).

Almost surely, 2^{25525086138512} is an apocalyptic number.

It is an amenable number.

25525086138512 is an abundant number, since it is smaller than the sum of its proper divisors (25792627264048).

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

25525086138512 is a wasteful number, since it uses less digits than its factorization.

25525086138512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522541191 (or 522541185 counting only the distinct ones).

The product of its (nonzero) digits is 5760000, while the sum is 53.

The spelling of 25525086138512 in words is "twenty-five trillion, five hundred twenty-five billion, eighty-six million, one hundred thirty-eight thousand, five hundred twelve".