557148728 has 16 divisors (see below), whose sum is σ = 1044984480. Its totient is φ = 278486208.

The previous prime is 557148727. The next prime is 557148731. The reversal of 557148728 is 827841755.

It is a super-2 number, since 2×557148728² = 620829410224035968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557148727) 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, 21476 + ... + 39692.

It is an arithmetic number, because the mean of its divisors is an integer number (65311530).

Almost surely, 2^557148728 is an apocalyptic number.

It is an amenable number.

557148728 is a deficient number, since it is larger than the sum of its proper divisors (487835752).

557148728 is a wasteful number, since it uses less digits than its factorization.

557148728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22046 (or 22042 counting only the distinct ones).

The product of its digits is 627200, while the sum is 47.

The square root of 557148728 is about 23603.9981359091. The cubic root of 557148728 is about 822.8557616935.

The spelling of 557148728 in words is "five hundred fifty-seven million, one hundred forty-eight thousand, seven hundred twenty-eight".