513254320 has 20 divisors (see below), whose sum is σ = 1193316480. Its totient is φ = 205301696.

The previous prime is 513254311. The next prime is 513254363. The reversal of 513254320 is 23452315.

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3207760 + ... + 3207919.

It is an arithmetic number, because the mean of its divisors is an integer number (59665824).

Almost surely, 2^513254320 is an apocalyptic number.

It is an amenable number.

513254320 is an abundant number, since it is smaller than the sum of its proper divisors (680062160).

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

513254320 is a wasteful number, since it uses less digits than its factorization.

513254320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6415692 (or 6415686 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 513254320 is about 22655.1168613185. The cubic root of 513254320 is about 800.6527589041.

The spelling of 513254320 in words is "five hundred thirteen million, two hundred fifty-four thousand, three hundred twenty".