557428616 has 16 divisors (see below), whose sum is σ = 1054769100. Its totient is φ = 276156864.

The previous prime is 557428603. The next prime is 557428649. The reversal of 557428616 is 616824755.

It can be written as a sum of positive squares in 2 ways, for example, as 486026116 + 71402500 = 22046^2 + 8450^2 .

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 318755 + ... + 320498.

Almost surely, 2^557428616 is an apocalyptic number.

It is an amenable number.

557428616 is a deficient number, since it is larger than the sum of its proper divisors (497340484).

557428616 is a wasteful number, since it uses less digits than its factorization.

557428616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639368 (or 639364 counting only the distinct ones).

The product of its digits is 403200, while the sum is 44.

The square root of 557428616 is about 23609.9262175891. The cubic root of 557428616 is about 822.9935279589.

The spelling of 557428616 in words is "five hundred fifty-seven million, four hundred twenty-eight thousand, six hundred sixteen".