725311323 has 24 divisors (see below), whose sum is σ = 1149548400. Its totient is φ = 437031360.

The previous prime is 725311319. The next prime is 725311331. The reversal of 725311323 is 323113527.

725311323 is a `hidden beast` number, since 7 + 25 + 311 + 323 = 666.

It is not a de Polignac number, because 725311323 - 2² = 725311319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (725311303) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4048 + ... + 38301.

It is an arithmetic number, because the mean of its divisors is an integer number (47897850).

Almost surely, 2^725311323 is an apocalyptic number.

725311323 is a deficient number, since it is larger than the sum of its proper divisors (424237077).

725311323 is a wasteful number, since it uses less digits than its factorization.

725311323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42539 (or 42536 counting only the distinct ones).

The product of its digits is 3780, while the sum is 27.

The square root of 725311323 is about 26931.6045381630. The cubic root of 725311323 is about 898.4794584319.

The spelling of 725311323 in words is "seven hundred twenty-five million, three hundred eleven thousand, three hundred twenty-three".