557538 has 16 divisors (see below), whose sum is σ = 1141536. Its totient is φ = 181440.

The previous prime is 557537. The next prime is 557551. The reversal of 557538 is 835755.

It is a junction number, because it is equal to n+sod(n) for n = 557499 and 557508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 823 + ... + 1338.

It is an arithmetic number, because the mean of its divisors is an integer number (71346).

2⁵⁵⁷⁵³⁸ is an apocalyptic number.

557538 is an abundant number, since it is smaller than the sum of its proper divisors (583998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

557538 is a wasteful number, since it uses less digits than its factorization.

557538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2209.

The product of its digits is 21000, while the sum is 33.

The square root of 557538 is about 746.6846724019. The cubic root of 557538 is about 82.3047356338.

The spelling of 557538 in words is "five hundred fifty-seven thousand, five hundred thirty-eight".