725992856 has 16 divisors (see below), whose sum is σ = 1364637240. Its totient is φ = 362089600.

The previous prime is 725992843. The next prime is 725992889. The reversal of 725992856 is 658299527.

It is a junction number, because it is equal to n+sod(n) for n = 725992798 and 725992807.

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, 109946 + ... + 116361.

Almost surely, 2^725992856 is an apocalyptic number.

It is an amenable number.

725992856 is a deficient number, since it is larger than the sum of its proper divisors (638644384).

725992856 is a wasteful number, since it uses less digits than its factorization.

725992856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226714 (or 226710 counting only the distinct ones).

The product of its digits is 2721600, while the sum is 53.

The square root of 725992856 is about 26944.2546009349. The cubic root of 725992856 is about 898.7607866868.

The spelling of 725992856 in words is "seven hundred twenty-five million, nine hundred ninety-two thousand, eight hundred fifty-six".