557311646 has 12 divisors (see below), whose sum is σ = 888035568. Its totient is φ = 262264032.

The previous prime is 557311627. The next prime is 557311661. The reversal of 557311646 is 646113755.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 481526 + ... + 482681.

It is an arithmetic number, because the mean of its divisors is an integer number (74002964).

Almost surely, 2^557311646 is an apocalyptic number.

557311646 is a deficient number, since it is larger than the sum of its proper divisors (330723922).

557311646 is a wasteful number, since it uses less digits than its factorization.

557311646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 964243 (or 964226 counting only the distinct ones).

The product of its digits is 75600, while the sum is 38.

The square root of 557311646 is about 23607.4489515492. The cubic root of 557311646 is about 822.9359586819.

The spelling of 557311646 in words is "five hundred fifty-seven million, three hundred eleven thousand, six hundred forty-six".