725835231 has 24 divisors (see below), whose sum is σ = 1144602576. Its totient is φ = 439568640.

The previous prime is 725835223. The next prime is 725835233. The reversal of 725835231 is 132538527.

It is a happy number.

725835231 is a `hidden beast` number, since 72 + 583 + 5 + 2 + 3 + 1 = 666.

It is not a de Polignac number, because 725835231 - 2³ = 725835223 is a prime.

It is a super-2 number, since 2×725835231² = 1053673565121646722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725835233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 217431 + ... + 220743.

It is an arithmetic number, because the mean of its divisors is an integer number (47691774).

Almost surely, 2^725835231 is an apocalyptic number.

725835231 is a deficient number, since it is larger than the sum of its proper divisors (418767345).

725835231 is a wasteful number, since it uses less digits than its factorization.

725835231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5543 (or 5540 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 725835231 is about 26941.3294215412. The cubic root of 725835231 is about 898.6957367249.

The spelling of 725835231 in words is "seven hundred twenty-five million, eight hundred thirty-five thousand, two hundred thirty-one".