25242624252 has 18 divisors (see below), whose sum is σ = 63807744728. Its totient is φ = 8414208072.

The previous prime is 25242624241. The next prime is 25242624257.

25242624252 is a `hidden beast` number, since 2 + 5 + 2 + 4 + 2 + 624 + 25 + 2 = 666.

25242624252 is nontrivially palindromic in base 10.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-3 number, since 3×25242624252³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 701184007 = 25242624252 / (2 + 5 + 2 + 4 + 2 + 6 + 2 + 4 + 2 + 5 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25242624257) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 350591968 + ... + 350592039.

Almost surely, 2^25242624252 is an apocalyptic number.

It is an amenable number.

25242624252 is an abundant number, since it is smaller than the sum of its proper divisors (38565120476).

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

25242624252 is a wasteful number, since it uses less digits than its factorization.

25242624252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701184017 (or 701184012 counting only the distinct ones).

The product of its digits is 153600, while the sum is 36.

The spelling of 25242624252 in words is "twenty-five billion, two hundred forty-two million, six hundred twenty-four thousand, two hundred fifty-two".