725455824 has 40 divisors (see below), whose sum is σ = 1984337280. Its totient is φ = 227593728.

The previous prime is 725455817. The next prime is 725455847. The reversal of 725455824 is 428554527.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 443704 + ... + 445335.

It is an arithmetic number, because the mean of its divisors is an integer number (49608432).

Almost surely, 2^725455824 is an apocalyptic number.

It is an amenable number.

725455824 is an abundant number, since it is smaller than the sum of its proper divisors (1258881456).

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

725455824 is a wasteful number, since it uses less digits than its factorization.

725455824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 889067 (or 889061 counting only the distinct ones).

The product of its digits is 448000, while the sum is 42.

The square root of 725455824 is about 26934.2871448271. The cubic root of 725455824 is about 898.5391213450.

The spelling of 725455824 in words is "seven hundred twenty-five million, four hundred fifty-five thousand, eight hundred twenty-four".