25610224420 has 48 divisors (see below), whose sum is σ = 60101709696. Its totient is φ = 9085664000.

The previous prime is 25610224411. The next prime is 25610224433. The reversal of 25610224420 is 2442201652.

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, 1410616 + ... + 1428655.

It is an arithmetic number, because the mean of its divisors is an integer number (1252118952).

Almost surely, 2^25610224420 is an apocalyptic number.

25610224420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25610224420 is an abundant number, since it is smaller than the sum of its proper divisors (34491485276).

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

25610224420 is a wasteful number, since it uses less digits than its factorization.

25610224420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2839332 (or 2839330 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The spelling of 25610224420 in words is "twenty-five billion, six hundred ten million, two hundred twenty-four thousand, four hundred twenty".