557033906 has 48 divisors (see below), whose sum is σ = 1041230400. Its totient is φ = 221395680.

The previous prime is 557033903. The next prime is 557034007. The reversal of 557033906 is 609330755.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a self number, because there is not a number n which added to its sum of digits gives 557033906.

It is not an unprimeable number, because it can be changed into a prime (557033903) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55115 + ... + 64433.

It is an arithmetic number, because the mean of its divisors is an integer number (21692300).

Almost surely, 2^557033906 is an apocalyptic number.

557033906 is a deficient number, since it is larger than the sum of its proper divisors (484196494).

557033906 is a wasteful number, since it uses less digits than its factorization.

557033906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9375 (or 9364 counting only the distinct ones).

The product of its (nonzero) digits is 85050, while the sum is 38.

The square root of 557033906 is about 23601.5657531444. The cubic root of 557033906 is about 822.7992307465.

The spelling of 557033906 in words is "five hundred fifty-seven million, thirty-three thousand, nine hundred six".