25246530220 has 24 divisors (see below), whose sum is σ = 53255470464. Its totient is φ = 10053325056.

The previous prime is 25246530191. The next prime is 25246530241. The reversal of 25246530220 is 2203564252.

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, 2825869 + ... + 2834788.

It is an arithmetic number, because the mean of its divisors is an integer number (2218977936).

Almost surely, 2^25246530220 is an apocalyptic number.

25246530220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25246530220 is an abundant number, since it is smaller than the sum of its proper divisors (28008940244).

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

25246530220 is a wasteful number, since it uses less digits than its factorization.

25246530220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5660889 (or 5660887 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 31.

The spelling of 25246530220 in words is "twenty-five billion, two hundred forty-six million, five hundred thirty thousand, two hundred twenty".