557913 has 4 divisors (see below), whose sum is σ = 743888. Its totient is φ = 371940.

The previous prime is 557903. The next prime is 557927. The reversal of 557913 is 319755.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 557913 - 2¹⁴ = 541529 is a prime.

It is a super-2 number, since 2×557913² = 622533831138, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (557903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92983 + ... + 92988.

It is an arithmetic number, because the mean of its divisors is an integer number (185972).

2⁵⁵⁷⁹¹³ is an apocalyptic number.

It is an amenable number.

557913 is a deficient number, since it is larger than the sum of its proper divisors (185975).

557913 is a wasteful number, since it uses less digits than its factorization.

557913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185974.

The product of its digits is 4725, while the sum is 30.

The square root of 557913 is about 746.9357402080. The cubic root of 557913 is about 82.3231842171.

It can be divided in two parts, 5579 and 13, that multiplied together give a palindrome (72527).

The spelling of 557913 in words is "five hundred fifty-seven thousand, nine hundred thirteen".