557578542 has 16 divisors (see below), whose sum is σ = 1115431632. Its totient is φ = 185813760.

The previous prime is 557578537. The next prime is 557578543. The reversal of 557578542 is 245875755.

It is a junction number, because it is equal to n+sod(n) for n = 557578491 and 557578500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557578543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22888 + ... + 40484.

It is an arithmetic number, because the mean of its divisors is an integer number (69714477).

Almost surely, 2^557578542 is an apocalyptic number.

557578542 is an abundant number, since it is smaller than the sum of its proper divisors (557853090).

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

557578542 is a wasteful number, since it uses less digits than its factorization.

557578542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22883.

The product of its digits is 1960000, while the sum is 48.

The square root of 557578542 is about 23613.1010669925. The cubic root of 557578542 is about 823.0673054577.

The spelling of 557578542 in words is "five hundred fifty-seven million, five hundred seventy-eight thousand, five hundred forty-two".