25252315530 has 32 divisors (see below), whose sum is σ = 65267524224. Its totient is φ = 6215954496.

The previous prime is 25252315511. The next prime is 25252315553. The reversal of 25252315530 is 3551325252.

It is a junction number, because it is equal to n+sod(n) for n = 25252315491 and 25252315500.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32374374 + ... + 32375153.

It is an arithmetic number, because the mean of its divisors is an integer number (2039610132).

Almost surely, 2^25252315530 is an apocalyptic number.

25252315530 is an abundant number, since it is smaller than the sum of its proper divisors (40015208694).

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

25252315530 is a wasteful number, since it uses less digits than its factorization.

25252315530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64749550.

The product of its (nonzero) digits is 45000, while the sum is 33.

The spelling of 25252315530 in words is "twenty-five billion, two hundred fifty-two million, three hundred fifteen thousand, five hundred thirty".