725565357 has 20 divisors (see below), whose sum is σ = 1182404256. Its totient is φ = 439736040.

The previous prime is 725565353. The next prime is 725565371. The reversal of 725565357 is 753565527.

It is not a de Polignac number, because 725565357 - 2² = 725565353 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725565353) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 406273 + ... + 408054.

Almost surely, 2^725565357 is an apocalyptic number.

It is an amenable number.

725565357 is a deficient number, since it is larger than the sum of its proper divisors (456838899).

725565357 is a wasteful number, since it uses less digits than its factorization.

725565357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814350 (or 814341 counting only the distinct ones).

The product of its digits is 1102500, while the sum is 45.

The square root of 725565357 is about 26936.3204057273. The cubic root of 725565357 is about 898.5843410673.

The spelling of 725565357 in words is "seven hundred twenty-five million, five hundred sixty-five thousand, three hundred fifty-seven".