323513725 has 24 divisors (see below), whose sum is σ = 413412032. Its totient is φ = 250992000.

The previous prime is 323513719. The next prime is 323513731. The reversal of 323513725 is 527315323.

It is an interprime number because it is at equal distance from previous prime (323513719) and next prime (323513731).

It is not a de Polignac number, because 323513725 - 2²¹ = 321416573 is a prime.

It is a super-2 number, since 2×323513725² = 209322260526751250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 161329 + ... + 163321.

Almost surely, 2^323513725 is an apocalyptic number.

It is an amenable number.

323513725 is a deficient number, since it is larger than the sum of its proper divisors (89898307).

323513725 is a wasteful number, since it uses less digits than its factorization.

323513725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2197 (or 2192 counting only the distinct ones).

The product of its digits is 18900, while the sum is 31.

The square root of 323513725 is about 17986.4872890734. The cubic root of 323513725 is about 686.4847648955.

The spelling of 323513725 in words is "three hundred twenty-three million, five hundred thirteen thousand, seven hundred twenty-five".