25613555531652 has 96 divisors (see below), whose sum is σ = 76703695770240. Its totient is φ = 7305113871360.

The previous prime is 25613555531647. The next prime is 25613555531671.

25613555531652 is a `hidden beast` number, since 2 + 5 + 6 + 1 + 3 + 5 + 55 + 531 + 6 + 52 = 666.

25613555531652 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 634104273 + ... + 634144664.

It is an arithmetic number, because the mean of its divisors is an integer number (798996830940).

Almost surely, 2^{25613555531652} is an apocalyptic number.

25613555531652 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25613555531652 is an abundant number, since it is smaller than the sum of its proper divisors (51090140238588).

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

25613555531652 is a wasteful number, since it uses less digits than its factorization.

25613555531652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1268248978 (or 1268248970 counting only the distinct ones).

The product of its digits is 20250000, while the sum is 54.

The spelling of 25613555531652 in words is "twenty-five trillion, six hundred thirteen billion, five hundred fifty-five million, five hundred thirty-one thousand, six hundred fifty-two".