513915630 has 32 divisors (see below), whose sum is σ = 1238532768. Its totient is φ = 136473600.

The previous prime is 513915601. The next prime is 513915631. The reversal of 513915630 is 36519315.

It is a junction number, because it is equal to n+sod(n) for n = 513915591 and 513915600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513915631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28311 + ... + 42770.

It is an arithmetic number, because the mean of its divisors is an integer number (38704149).

Almost surely, 2^513915630 is an apocalyptic number.

513915630 is an abundant number, since it is smaller than the sum of its proper divisors (724617138).

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

513915630 is a wasteful number, since it uses less digits than its factorization.

513915630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71332.

The product of its (nonzero) digits is 12150, while the sum is 33.

The square root of 513915630 is about 22669.7073205633. The cubic root of 513915630 is about 800.9964822220.

The spelling of 513915630 in words is "five hundred thirteen million, nine hundred fifteen thousand, six hundred thirty".