425597520 has 80 divisors (see below), whose sum is σ = 1376733312. Its totient is φ = 108556800.

The previous prime is 425597479. The next prime is 425597539. The reversal of 425597520 is 25795524.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×425597520² = 362266498060300800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33031 + ... + 44070.

Almost surely, 2^425597520 is an apocalyptic number.

425597520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

425597520 is an abundant number, since it is smaller than the sum of its proper divisors (951135792).

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

425597520 is a wasteful number, since it uses less digits than its factorization.

425597520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77140 (or 77134 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 39.

The square root of 425597520 is about 20630.0150266547. The cubic root of 425597520 is about 752.1994811824.

The spelling of 425597520 in words is "four hundred twenty-five million, five hundred ninety-seven thousand, five hundred twenty".