725459864 has 8 divisors (see below), whose sum is σ = 1360237260. Its totient is φ = 362729928.

The previous prime is 725459849. The next prime is 725459909. The reversal of 725459864 is 468954527.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45341234 + ... + 45341249.

Almost surely, 2^725459864 is an apocalyptic number.

It is an amenable number.

725459864 is a deficient number, since it is larger than the sum of its proper divisors (634777396).

725459864 is a wasteful number, since it uses less digits than its factorization.

725459864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90682489 (or 90682485 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 50.

The square root of 725459864 is about 26934.3621420668. The cubic root of 725459864 is about 898.5407893038.

The spelling of 725459864 in words is "seven hundred twenty-five million, four hundred fifty-nine thousand, eight hundred sixty-four".