557539 has 4 divisors (see below), whose sum is σ = 563056. Its totient is φ = 552024.

The previous prime is 557537. The next prime is 557551. The reversal of 557539 is 935755.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 557539 - 2¹ = 557537 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (557533) 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, 2604 + ... + 2809.

It is an arithmetic number, because the mean of its divisors is an integer number (140764).

2⁵⁵⁷⁵³⁹ is an apocalyptic number.

557539 is a deficient number, since it is larger than the sum of its proper divisors (5517).

557539 is a wasteful number, since it uses less digits than its factorization.

557539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5516.

The product of its digits is 23625, while the sum is 34.

The square root of 557539 is about 746.6853420284. The cubic root of 557539 is about 82.3047848410.

The spelling of 557539 in words is "five hundred fifty-seven thousand, five hundred thirty-nine".