513458020 has 12 divisors (see below), whose sum is σ = 1078261884. Its totient is φ = 205383200.

The previous prime is 513457993. The next prime is 513458027. The reversal of 513458020 is 20854315.

It can be written as a sum of positive squares in 2 ways, for example, as 122367844 + 391090176 = 11062^2 + 19776^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 513458020.

It is not an unprimeable number, because it can be changed into a prime (513458027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12836431 + ... + 12836470.

It is an arithmetic number, because the mean of its divisors is an integer number (89855157).

Almost surely, 2^513458020 is an apocalyptic number.

It is an amenable number.

513458020 is an abundant number, since it is smaller than the sum of its proper divisors (564803864).

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

513458020 is a wasteful number, since it uses less digits than its factorization.

513458020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25672910 (or 25672908 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 513458020 is about 22659.6120884714. The cubic root of 513458020 is about 800.7586657221.

The spelling of 513458020 in words is "five hundred thirteen million, four hundred fifty-eight thousand, twenty".