516545012 has 24 divisors (see below), whose sum is σ = 929622120. Its totient is φ = 250957440.

The previous prime is 516544997. The next prime is 516545021. The reversal of 516545012 is 210545615.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 145057936 + 371487076 = 12044^2 + 19274^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137414 + ... + 141122.

It is an arithmetic number, because the mean of its divisors is an integer number (38734255).

Almost surely, 2^516545012 is an apocalyptic number.

It is an amenable number.

516545012 is a deficient number, since it is larger than the sum of its proper divisors (413077108).

516545012 is a wasteful number, since it uses less digits than its factorization.

516545012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4691 (or 4689 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 516545012 is about 22727.6266248810. The cubic root of 516545012 is about 802.3602235829.

The spelling of 516545012 in words is "five hundred sixteen million, five hundred forty-five thousand, twelve".