25565344356552 has 256 divisors, whose sum is σ = 86663392542720. Its totient is φ = 6068863872000.

The previous prime is 25565344356521. The next prime is 25565344356557.

It is a happy number.

25565344356552 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (25565344356557) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2841688 + ... + 7694535.

It is an arithmetic number, because the mean of its divisors is an integer number (338528877120).

Almost surely, 2^{25565344356552} is an apocalyptic number.

25565344356552 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25565344356552 is an abundant number, since it is smaller than the sum of its proper divisors (61098048186168).

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

25565344356552 is a wasteful number, since it uses less digits than its factorization.

25565344356552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10536364 (or 10536360 counting only the distinct ones).

The product of its digits is 324000000, while the sum is 60.

The spelling of 25565344356552 in words is "twenty-five trillion, five hundred sixty-five billion, three hundred forty-four million, three hundred fifty-six thousand, five hundred fifty-two".