513531555242554 has 16 divisors (see below), whose sum is σ = 784838974844448. Its totient is φ = 251918659060432.

The previous prime is 513531555242513. The next prime is 513531555242561. The reversal of 513531555242554 is 455242555135315.

It is a junction number, because it is equal to n+sod(n) for n = 513531555242495 and 513531555242504.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13022092 + ... + 34592455.

It is an arithmetic number, because the mean of its divisors is an integer number (49052435927778).

Almost surely, 2^{513531555242554} is an apocalyptic number.

513531555242554 is a deficient number, since it is larger than the sum of its proper divisors (271307419601894).

513531555242554 is a wasteful number, since it uses less digits than its factorization.

513531555242554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47716349.

The product of its digits is 45000000, while the sum is 55.

The spelling of 513531555242554 in words is "five hundred thirteen trillion, five hundred thirty-one billion, five hundred fifty-five million, two hundred forty-two thousand, five hundred fifty-four".