425271664 has 20 divisors (see below), whose sum is σ = 825424600. Its totient is φ = 212258880.

The previous prime is 425271641. The next prime is 425271703. The reversal of 425271664 is 466172524.

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, 14139 + ... + 32410.

It is an arithmetic number, because the mean of its divisors is an integer number (41271230).

Almost surely, 2^425271664 is an apocalyptic number.

It is an amenable number.

425271664 is a deficient number, since it is larger than the sum of its proper divisors (400152936).

425271664 is a wasteful number, since it uses less digits than its factorization.

425271664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47128 (or 47122 counting only the distinct ones).

The product of its digits is 80640, while the sum is 37.

The square root of 425271664 is about 20622.1158953198. The cubic root of 425271664 is about 752.0074599381.

The spelling of 425271664 in words is "four hundred twenty-five million, two hundred seventy-one thousand, six hundred sixty-four".