515055212 has 24 divisors (see below), whose sum is σ = 1030611456. Its totient is φ = 220630608.

The previous prime is 515055209. The next prime is 515055241. The reversal of 515055212 is 212550515.

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 7 ways as a sum of consecutive naturals, for example, 86813 + ... + 92555.

It is an arithmetic number, because the mean of its divisors is an integer number (42942144).

Almost surely, 2^515055212 is an apocalyptic number.

It is an amenable number.

515055212 is an abundant number, since it is smaller than the sum of its proper divisors (515556244).

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

515055212 is a wasteful number, since it uses less digits than its factorization.

515055212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8957 (or 8955 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 26.

The square root of 515055212 is about 22694.8278689220. The cubic root of 515055212 is about 801.5881015806.

The spelling of 515055212 in words is "five hundred fifteen million, fifty-five thousand, two hundred twelve".