516557612 has 6 divisors (see below), whose sum is σ = 903975828. Its totient is φ = 258278804.

The previous prime is 516557551. The next prime is 516557623. The reversal of 516557612 is 216755615.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64569698 + ... + 64569705.

It is an arithmetic number, because the mean of its divisors is an integer number (150662638).

Almost surely, 2^516557612 is an apocalyptic number.

It is an amenable number.

516557612 is a deficient number, since it is larger than the sum of its proper divisors (387418216).

516557612 is a wasteful number, since it uses less digits than its factorization.

516557612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129139407 (or 129139405 counting only the distinct ones).

The product of its digits is 63000, while the sum is 38.

The square root of 516557612 is about 22727.9038188743. The cubic root of 516557612 is about 802.3667474781.

The spelling of 516557612 in words is "five hundred sixteen million, five hundred fifty-seven thousand, six hundred twelve".