557443317 has 8 divisors (see below), whose sum is σ = 743462560. Its totient is φ = 371526480.

The previous prime is 557443309. The next prime is 557443321. The reversal of 557443317 is 713344755.

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

It is not a de Polignac number, because 557443317 - 2³ = 557443309 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 (557442317) 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, 11842 + ... + 35427.

It is an arithmetic number, because the mean of its divisors is an integer number (92932820).

Almost surely, 2^557443317 is an apocalyptic number.

It is an amenable number.

557443317 is a deficient number, since it is larger than the sum of its proper divisors (186019243).

557443317 is a wasteful number, since it uses less digits than its factorization.

557443317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51203.

The product of its digits is 176400, while the sum is 39.

The square root of 557443317 is about 23610.2375464543. The cubic root of 557443317 is about 823.0007627994. Note that the first 3 decimals are identical.

The spelling of 557443317 in words is "five hundred fifty-seven million, four hundred forty-three thousand, three hundred seventeen".