557725 has 12 divisors (see below), whose sum is σ = 790624. Its totient is φ = 382320.

The previous prime is 557717. The next prime is 557729. The reversal of 557725 is 527755.

It is not a de Polignac number, because 557725 - 2³ = 557717 is a prime.

It is a super-2 number, since 2×557725² = 622114351250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557729) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1419 + ... + 1768.

2⁵⁵⁷⁷²⁵ is an apocalyptic number.

It is an amenable number.

557725 is a deficient number, since it is larger than the sum of its proper divisors (232899).

557725 is a wasteful number, since it uses less digits than its factorization.

557725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3204 (or 3199 counting only the distinct ones).

The product of its digits is 12250, while the sum is 31.

The square root of 557725 is about 746.8098820985. The cubic root of 557725 is about 82.3139363610.

The spelling of 557725 in words is "five hundred fifty-seven thousand, seven hundred twenty-five".