425635656 has 16 divisors (see below), whose sum is σ = 1064089200. Its totient is φ = 141878544.

The previous prime is 425635649. The next prime is 425635667. The reversal of 425635656 is 656536524.

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, 8867386 + ... + 8867433.

It is an arithmetic number, because the mean of its divisors is an integer number (66505575).

Almost surely, 2^425635656 is an apocalyptic number.

It is an amenable number.

425635656 is an abundant number, since it is smaller than the sum of its proper divisors (638453544).

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

425635656 is a wasteful number, since it uses less digits than its factorization.

425635656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17734828 (or 17734824 counting only the distinct ones).

The product of its digits is 648000, while the sum is 42.

The square root of 425635656 is about 20630.9392902989. The cubic root of 425635656 is about 752.2219476531.

The spelling of 425635656 in words is "four hundred twenty-five million, six hundred thirty-five thousand, six hundred fifty-six".