513653730 has 16 divisors (see below), whose sum is σ = 1232769024. Its totient is φ = 136974320.

The previous prime is 513653629. The next prime is 513653731. The reversal of 513653730 is 37356315.

It is a junction number, because it is equal to n+sod(n) for n = 513653691 and 513653700.

It is not an unprimeable number, because it can be changed into a prime (513653731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8560866 + ... + 8560925.

It is an arithmetic number, because the mean of its divisors is an integer number (77048064).

Almost surely, 2^513653730 is an apocalyptic number.

513653730 is an abundant number, since it is smaller than the sum of its proper divisors (719115294).

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

513653730 is a wasteful number, since it uses less digits than its factorization.

513653730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17121801.

The product of its (nonzero) digits is 28350, while the sum is 33.

The square root of 513653730 is about 22663.9301534398. The cubic root of 513653730 is about 800.8603920335.

The spelling of 513653730 in words is "five hundred thirteen million, six hundred fifty-three thousand, seven hundred thirty".