425518520 has 32 divisors (see below), whose sum is σ = 1094191200. Its totient is φ = 145891968.

The previous prime is 425518519. The next prime is 425518531. The reversal of 425518520 is 25815524.

It is a congruent number.

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, 759575 + ... + 760134.

It is an arithmetic number, because the mean of its divisors is an integer number (34193475).

Almost surely, 2^425518520 is an apocalyptic number.

425518520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

425518520 is an abundant number, since it is smaller than the sum of its proper divisors (668672680).

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

425518520 is a wasteful number, since it uses less digits than its factorization.

425518520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1519727 (or 1519723 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 32.

The square root of 425518520 is about 20628.1002518409. The cubic root of 425518520 is about 752.1529368665.

The spelling of 425518520 in words is "four hundred twenty-five million, five hundred eighteen thousand, five hundred twenty".