513225508 has 12 divisors (see below), whose sum is σ = 900023040. Its totient is φ = 256076072.

The previous prime is 513225497. The next prime is 513225509. The reversal of 513225508 is 805522315.

It is a self number, because there is not a number n which added to its sum of digits gives 513225508.

It is not an unprimeable number, because it can be changed into a prime (513225509) 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, 132016 + ... + 135847.

It is an arithmetic number, because the mean of its divisors is an integer number (75001920).

Almost surely, 2^513225508 is an apocalyptic number.

It is an amenable number.

513225508 is a deficient number, since it is larger than the sum of its proper divisors (386797532).

513225508 is a wasteful number, since it uses less digits than its factorization.

513225508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268346 (or 268344 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 513225508 is about 22654.4809695566. The cubic root of 513225508 is about 800.6377768324.

The spelling of 513225508 in words is "five hundred thirteen million, two hundred twenty-five thousand, five hundred eight".