557370906 has 8 divisors (see below), whose sum is σ = 1114741824. Its totient is φ = 185790300.

The previous prime is 557370899. The next prime is 557370907. The reversal of 557370906 is 609073755.

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

557370906 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (557370907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46447570 + ... + 46447581.

It is an arithmetic number, because the mean of its divisors is an integer number (139342728).

Almost surely, 2^557370906 is an apocalyptic number.

557370906 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

557370906 is a wasteful number, since it uses less digits than its factorization.

557370906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92895156.

The product of its (nonzero) digits is 198450, while the sum is 42.

The square root of 557370906 is about 23608.7040305054. The cubic root of 557370906 is about 822.9651257598.

The spelling of 557370906 in words is "five hundred fifty-seven million, three hundred seventy thousand, nine hundred six".