513255560 has 32 divisors (see below), whose sum is σ = 1156636800. Its totient is φ = 204980160.

The previous prime is 513255559. The next prime is 513255563. The reversal of 513255560 is 65552315.

It is not an unprimeable number, because it can be changed into a prime (513255563) 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, 16625 + ... + 36095.

It is an arithmetic number, because the mean of its divisors is an integer number (36144900).

Almost surely, 2^513255560 is an apocalyptic number.

It is an amenable number.

513255560 is an abundant number, since it is smaller than the sum of its proper divisors (643381240).

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

513255560 is a wasteful number, since it uses less digits than its factorization.

513255560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20141 (or 20137 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 32.

The square root of 513255560 is about 22655.1442281880. The cubic root of 513255560 is about 800.6534036842.

The spelling of 513255560 in words is "five hundred thirteen million, two hundred fifty-five thousand, five hundred sixty".