513655460 has 48 divisors (see below), whose sum is σ = 1121311296. Its totient is φ = 197476992.

The previous prime is 513655409. The next prime is 513655477. The reversal of 513655460 is 64556315.

It is a self number, because there is not a number n which added to its sum of digits gives 513655460.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57239 + ... + 65601.

It is an arithmetic number, because the mean of its divisors is an integer number (23360652).

Almost surely, 2^513655460 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 513655460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (560655648).

513655460 is an abundant number, since it is smaller than the sum of its proper divisors (607655836).

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

513655460 is a wasteful number, since it uses less digits than its factorization.

513655460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8492 (or 8490 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 35.

The square root of 513655460 is about 22663.9683197802. The cubic root of 513655460 is about 800.8612911392.

The spelling of 513655460 in words is "five hundred thirteen million, six hundred fifty-five thousand, four hundred sixty".