557020256 has 48 divisors (see below), whose sum is σ = 1232358624. Its totient is φ = 245904384.

The previous prime is 557020213. The next prime is 557020267. The reversal of 557020256 is 652020755.

It is a Harshad number since it is a multiple of its sum of digits (32).

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, 19541 + ... + 38676.

It is an arithmetic number, because the mean of its divisors is an integer number (25674138).

Almost surely, 2^557020256 is an apocalyptic number.

It is an amenable number.

557020256 is an abundant number, since it is smaller than the sum of its proper divisors (675338368).

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

557020256 is a wasteful number, since it uses less digits than its factorization.

557020256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58263 (or 58255 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 32.

The square root of 557020256 is about 23601.2765756431. The cubic root of 557020256 is about 822.7925098503.

The spelling of 557020256 in words is "five hundred fifty-seven million, twenty thousand, two hundred fifty-six".