516855020 has 48 divisors (see below), whose sum is σ = 1212968736. Its totient is φ = 183360000.

The previous prime is 516855019. The next prime is 516855041. The reversal of 516855020 is 20558615.

It is a super-2 number, since 2×516855020² = 534278223398400800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19631 + ... + 37670.

It is an arithmetic number, because the mean of its divisors is an integer number (25270182).

Almost surely, 2^516855020 is an apocalyptic number.

It is an amenable number.

516855020 is an abundant number, since it is smaller than the sum of its proper divisors (696113716).

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

516855020 is a wasteful number, since it uses less digits than its factorization.

516855020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57362 (or 57360 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 32.

The square root of 516855020 is about 22734.4456717115. The cubic root of 516855020 is about 802.5207054631.

The spelling of 516855020 in words is "five hundred sixteen million, eight hundred fifty-five thousand, twenty".