425211012520 has 64 divisors (see below), whose sum is σ = 1107240307200. Its totient is φ = 143941224960.

The previous prime is 425211012509. The next prime is 425211012581. The reversal of 425211012520 is 25210112524.

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, 9589341 + ... + 9633580.

It is an arithmetic number, because the mean of its divisors is an integer number (17300629800).

Almost surely, 2^425211012520 is an apocalyptic number.

425211012520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

425211012520 is an abundant number, since it is smaller than the sum of its proper divisors (682029294680).

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

425211012520 is a wasteful number, since it uses less digits than its factorization.

425211012520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19223018 (or 19223014 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

The spelling of 425211012520 in words is "four hundred twenty-five billion, two hundred eleven million, twelve thousand, five hundred twenty".