25464376220 has 12 divisors (see below), whose sum is σ = 53475190104. Its totient is φ = 10185750480.

The previous prime is 25464376219. The next prime is 25464376247. The reversal of 25464376220 is 2267346452.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 636609386 + ... + 636609425.

It is an arithmetic number, because the mean of its divisors is an integer number (4456265842).

Almost surely, 2^25464376220 is an apocalyptic number.

25464376220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25464376220 is an abundant number, since it is smaller than the sum of its proper divisors (28010813884).

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

25464376220 is a wasteful number, since it uses less digits than its factorization.

25464376220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1273218820 (or 1273218818 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 41.

The spelling of 25464376220 in words is "twenty-five billion, four hundred sixty-four million, three hundred seventy-six thousand, two hundred twenty".