513244251020 has 12 divisors (see below), whose sum is σ = 1077812927184. Its totient is φ = 205297700400.

The previous prime is 513244251007. The next prime is 513244251073. The reversal of 513244251020 is 20152442315.

It is a super-2 number, since 2×513244251020² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12831106256 + ... + 12831106295.

It is an arithmetic number, because the mean of its divisors is an integer number (89817743932).

Almost surely, 2^513244251020 is an apocalyptic number.

It is an amenable number.

513244251020 is an abundant number, since it is smaller than the sum of its proper divisors (564568676164).

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

513244251020 is a wasteful number, since it uses less digits than its factorization.

513244251020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25662212560 (or 25662212558 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 513244251020 its reverse (20152442315), we get a palindrome (533396693335).

The spelling of 513244251020 in words is "five hundred thirteen billion, two hundred forty-four million, two hundred fifty-one thousand, twenty".