513066252520 has 16 divisors (see below), whose sum is σ = 1154399068260. Its totient is φ = 205226500992.

The previous prime is 513066252499. The next prime is 513066252529. The reversal of 513066252520 is 25252660315.

It can be written as a sum of positive squares in 2 ways, for example, as 509564690244 + 3501562276 = 713838^2 + 59174^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 513066252520.

It is not an unprimeable number, because it can be changed into a prime (513066252529) 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, 6413328117 + ... + 6413328196.

Almost surely, 2^513066252520 is an apocalyptic number.

It is an amenable number.

513066252520 is an abundant number, since it is smaller than the sum of its proper divisors (641332815740).

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

513066252520 is a wasteful number, since it uses less digits than its factorization.

513066252520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12826656324 (or 12826656320 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 37.

The spelling of 513066252520 in words is "five hundred thirteen billion, sixty-six million, two hundred fifty-two thousand, five hundred twenty".