25242551052 has 24 divisors (see below), whose sum is σ = 59053080576. Its totient is φ = 8392213008.

The previous prime is 25242551027. The next prime is 25242551111. The reversal of 25242551052 is 25015524252.

It is a happy number.

It is a super-2 number, since 2×25242551052² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2741548 + ... + 2750739.

It is an arithmetic number, because the mean of its divisors is an integer number (2460545024).

Almost surely, 2^25242551052 is an apocalyptic number.

It is an amenable number.

25242551052 is an abundant number, since it is smaller than the sum of its proper divisors (33810529524).

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

25242551052 is a wasteful number, since it uses less digits than its factorization.

25242551052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5492677 (or 5492675 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 33.

The spelling of 25242551052 in words is "twenty-five billion, two hundred forty-two million, five hundred fifty-one thousand, fifty-two".