557352768 has 56 divisors (see below), whose sum is σ = 1685332672. Its totient is φ = 159243264.

The previous prime is 557352749. The next prime is 557352839. The reversal of 557352768 is 867253755.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206005 + ... + 208692.

Almost surely, 2^557352768 is an apocalyptic number.

It is an amenable number.

557352768 is an abundant number, since it is smaller than the sum of its proper divisors (1127979904).

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

557352768 is a wasteful number, since it uses less digits than its factorization.

557352768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414719 (or 414709 counting only the distinct ones).

The product of its digits is 1764000, while the sum is 48.

The square root of 557352768 is about 23608.3198893949. The cubic root of 557352768 is about 822.9561986682.

The spelling of 557352768 in words is "five hundred fifty-seven million, three hundred fifty-two thousand, seven hundred sixty-eight".