25647355374652 has 24 divisors (see below), whose sum is σ = 48963782593152. Its totient is φ = 11657734138800.

The previous prime is 25647355374649. The next prime is 25647355374653.

25647355374652 is nontrivially palindromic in base 10.

25647355374652 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×25647355374652² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25647355374653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 479224 + ... + 7178047.

It is an arithmetic number, because the mean of its divisors is an integer number (2040157608048).

Almost surely, 2^{25647355374652} is an apocalyptic number.

25647355374652 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25647355374652 is a deficient number, since it is larger than the sum of its proper divisors (23316427218500).

25647355374652 is a wasteful number, since it uses less digits than its factorization.

25647355374652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7733409 (or 7733407 counting only the distinct ones).

The product of its digits is 635040000, while the sum is 64.

The spelling of 25647355374652 in words is "twenty-five trillion, six hundred forty-seven billion, three hundred fifty-five million, three hundred seventy-four thousand, six hundred fifty-two".