557405879 has 8 divisors (see below), whose sum is σ = 559951488. Its totient is φ = 554866360.

The previous prime is 557405873. The next prime is 557405903. The reversal of 557405879 is 978504755.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 557405879 - 2²⁴ = 540628663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557405873) 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, 306884 + ... + 308694.

It is an arithmetic number, because the mean of its divisors is an integer number (69993936).

Almost surely, 2^557405879 is an apocalyptic number.

557405879 is a deficient number, since it is larger than the sum of its proper divisors (2545609).

557405879 is a wasteful number, since it uses less digits than its factorization.

557405879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3045.

The product of its (nonzero) digits is 1764000, while the sum is 50.

The square root of 557405879 is about 23609.4446991029. Note that the first 3 decimals coincide. The cubic root of 557405879 is about 822.9823380907.

The spelling of 557405879 in words is "five hundred fifty-seven million, four hundred five thousand, eight hundred seventy-nine".