513992916 has 36 divisors (see below), whose sum is σ = 1301643252. Its totient is φ = 171016704.

The previous prime is 513992903. The next prime is 513992917. The reversal of 513992916 is 619299315.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 105144516 + 408848400 = 10254^2 + 20220^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513992917) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7236 + ... + 32868.

It is an arithmetic number, because the mean of its divisors is an integer number (36156757).

Almost surely, 2^513992916 is an apocalyptic number.

It is an amenable number.

513992916 is an abundant number, since it is smaller than the sum of its proper divisors (787650336).

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

513992916 is a wasteful number, since it uses less digits than its factorization.

513992916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26200 (or 26195 counting only the distinct ones).

The product of its digits is 131220, while the sum is 45.

The square root of 513992916 is about 22671.4118660484. The cubic root of 513992916 is about 801.0366332425.

The spelling of 513992916 in words is "five hundred thirteen million, nine hundred ninety-two thousand, nine hundred sixteen".