513507612 has 24 divisors (see below), whose sum is σ = 1198890112. Its totient is φ = 171068400.

The previous prime is 513507607. The next prime is 513507613. The reversal of 513507612 is 216705315.

It is a self number, because there is not a number n which added to its sum of digits gives 513507612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513507613) 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, 10287 + ... + 33657.

Almost surely, 2^513507612 is an apocalyptic number.

It is an amenable number.

513507612 is an abundant number, since it is smaller than the sum of its proper divisors (685382500).

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

513507612 is a wasteful number, since it uses less digits than its factorization.

513507612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25209 (or 25207 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 30.

The square root of 513507612 is about 22660.7063438014. The cubic root of 513507612 is about 800.7844451392.

The spelling of 513507612 in words is "five hundred thirteen million, five hundred seven thousand, six hundred twelve".