513215460 has 96 divisors (see below), whose sum is σ = 1680739200. Its totient is φ = 129651840.

The previous prime is 513215411. The next prime is 513215471. The reversal of 513215460 is 64512315.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14751 + ... + 35270.

It is an arithmetic number, because the mean of its divisors is an integer number (17507700).

Almost surely, 2^513215460 is an apocalyptic number.

It is an amenable number.

513215460 is an abundant number, since it is smaller than the sum of its proper divisors (1167523740).

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

513215460 is a wasteful number, since it uses less digits than its factorization.

513215460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50058 (or 50050 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 513215460 is about 22654.2592021898. The cubic root of 513215460 is about 800.6325517993.

Adding to 513215460 its reverse (64512315), we get a palindrome (577727775).

The spelling of 513215460 in words is "five hundred thirteen million, two hundred fifteen thousand, four hundred sixty".