513152507 has 4 divisors (see below), whose sum is σ = 586460016. Its totient is φ = 439845000.

The previous prime is 513152503. The next prime is 513152537. The reversal of 513152507 is 705251315.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 513152507 - 2² = 513152503 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 513152507.

It is not an unprimeable number, because it can be changed into a prime (513152501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36653744 + ... + 36653757.

It is an arithmetic number, because the mean of its divisors is an integer number (146615004).

Almost surely, 2^513152507 is an apocalyptic number.

513152507 is a deficient number, since it is larger than the sum of its proper divisors (73307509).

513152507 is an equidigital number, since it uses as much as digits as its factorization.

513152507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73307508.

The product of its (nonzero) digits is 5250, while the sum is 29.

The square root of 513152507 is about 22652.8697299040. The cubic root of 513152507 is about 800.5998142287.

The spelling of 513152507 in words is "five hundred thirteen million, one hundred fifty-two thousand, five hundred seven".