557768 has 16 divisors (see below), whose sum is σ = 1056780. Its totient is φ = 275968.

The previous prime is 557761. The next prime is 557779. The reversal of 557768 is 867755.

It can be written as a sum of positive squares in 2 ways, for example, as 362404 + 195364 = 602^2 + 442^2 .

It is a super-2 number, since 2×557768² = 622210283648, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (557761) by changing a digit.

557768 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 596 + ... + 1212.

2⁵⁵⁷⁷⁶⁸ is an apocalyptic number.

It is an amenable number.

557768 is a deficient number, since it is larger than the sum of its proper divisors (499012).

557768 is a wasteful number, since it uses less digits than its factorization.

557768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736 (or 732 counting only the distinct ones).

The product of its digits is 58800, while the sum is 38.

The square root of 557768 is about 746.8386706646. The cubic root of 557768 is about 82.3160517454.

The spelling of 557768 in words is "five hundred fifty-seven thousand, seven hundred sixty-eight".