513074520 has 128 divisors (see below), whose sum is σ = 1954598400. Its totient is φ = 117272448.

The previous prime is 513074519. The next prime is 513074531. The reversal of 513074520 is 25470315.

It is a happy number.

513074520 is a `hidden beast` number, since 5 + 130 + 7 + 4 + 520 = 666.

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

It is a congruent number.

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, 26374 + ... + 41493.

It is an arithmetic number, because the mean of its divisors is an integer number (15270300).

Almost surely, 2^513074520 is an apocalyptic number.

It is an amenable number.

513074520 is an abundant number, since it is smaller than the sum of its proper divisors (1441523880).

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

513074520 is a wasteful number, since it uses less digits than its factorization.

513074520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67894 (or 67884 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 513074520 is about 22651.1483152621. The cubic root of 513074520 is about 800.5592547848.

The spelling of 513074520 in words is "five hundred thirteen million, seventy-four thousand, five hundred twenty".