513254002521320 has 64 divisors (see below), whose sum is σ = 1155566413391040. Its totient is φ = 205169215680000.

The previous prime is 513254002521259. The next prime is 513254002521343. The reversal of 513254002521320 is 23125200452315.

It is a super-2 number, since 2×513254002521320² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 385684604 + ... + 387013076.

It is an arithmetic number, because the mean of its divisors is an integer number (18055725209235).

Almost surely, 2^{513254002521320} is an apocalyptic number.

It is an amenable number.

513254002521320 is an abundant number, since it is smaller than the sum of its proper divisors (642312410869720).

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

513254002521320 is a wasteful number, since it uses less digits than its factorization.

513254002521320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1334706 (or 1334702 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 35.

Adding to 513254002521320 its reverse (23125200452315), we get a palindrome (536379202973635).

The spelling of 513254002521320 in words is "five hundred thirteen trillion, two hundred fifty-four billion, two million, five hundred twenty-one thousand, three hundred twenty".