516555894 has 16 divisors (see below), whose sum is σ = 1034838000. Its totient is φ = 171897600.

The previous prime is 516555887. The next prime is 516555899. The reversal of 516555894 is 498555615.

It is a super-2 number, since 2×516555894² = 533659983252278472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516555899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68019 + ... + 75230.

It is an arithmetic number, because the mean of its divisors is an integer number (64677375).

Almost surely, 2^516555894 is an apocalyptic number.

516555894 is an abundant number, since it is smaller than the sum of its proper divisors (518282106).

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

516555894 is a wasteful number, since it uses less digits than its factorization.

516555894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143855.

The product of its digits is 1080000, while the sum is 48.

The square root of 516555894 is about 22727.8660238923. The cubic root of 516555894 is about 802.3658579564.

The spelling of 516555894 in words is "five hundred sixteen million, five hundred fifty-five thousand, eight hundred ninety-four".