557081984 has 16 divisors (see below), whose sum is σ = 1109812020. Its totient is φ = 278540928.

The previous prime is 557081983. The next prime is 557081999. The reversal of 557081984 is 489180755.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557081983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2175974 + ... + 2176229.

Almost surely, 2^557081984 is an apocalyptic number.

It is an amenable number.

557081984 is a deficient number, since it is larger than the sum of its proper divisors (552730036).

557081984 is an equidigital number, since it uses as much as digits as its factorization.

557081984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4352217 (or 4352205 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 47.

The square root of 557081984 is about 23602.5842652876. The cubic root of 557081984 is about 822.8229021981.

The spelling of 557081984 in words is "five hundred fifty-seven million, eighty-one thousand, nine hundred eighty-four".