557764 has 24 divisors (see below), whose sum is σ = 1058400. Its totient is φ = 256320.

The previous prime is 557761. The next prime is 557779. The reversal of 557764 is 467755.

It is a super-2 number, since 2×557764² = 622201359392, which contains 22 as substring.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

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

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3027 + ... + 3205.

It is an arithmetic number, because the mean of its divisors is an integer number (44100).

2⁵⁵⁷⁷⁶⁴ is an apocalyptic number.

It is an amenable number.

557764 is a deficient number, since it is larger than the sum of its proper divisors (500636).

557764 is a wasteful number, since it uses less digits than its factorization.

557764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243 (or 241 counting only the distinct ones).

The product of its digits is 29400, while the sum is 34.

The square root of 557764 is about 746.8359927052. The cubic root of 557764 is about 82.3158549701.

Subtracting from 557764 its reverse (467755), we obtain a palindrome (90009).

The spelling of 557764 in words is "five hundred fifty-seven thousand, seven hundred sixty-four".