25220751752 has 32 divisors (see below), whose sum is σ = 56394230400. Its totient is φ = 10338941184.

The previous prime is 25220751671. The next prime is 25220751781. The reversal of 25220751752 is 25715702252.

It is a happy number.

It is a super-2 number, since 2×25220751752² (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, 9789377 + ... + 9791952.

It is an arithmetic number, because the mean of its divisors is an integer number (1762319700).

Almost surely, 2^25220751752 is an apocalyptic number.

It is an amenable number.

25220751752 is an abundant number, since it is smaller than the sum of its proper divisors (31173478648).

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

25220751752 is a wasteful number, since it uses less digits than its factorization.

25220751752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19581365 (or 19581361 counting only the distinct ones).

The product of its (nonzero) digits is 98000, while the sum is 38.

The spelling of 25220751752 in words is "twenty-five billion, two hundred twenty million, seven hundred fifty-one thousand, seven hundred fifty-two".