513521111054 has 16 divisors (see below), whose sum is σ = 890928194688. Its totient is φ = 217428903672.

The previous prime is 513521111053. The next prime is 513521111069. The reversal of 513521111054 is 450111125315.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513521111053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220963172 + ... + 220965495.

It is an arithmetic number, because the mean of its divisors is an integer number (55683012168).

Almost surely, 2^513521111054 is an apocalyptic number.

513521111054 is a deficient number, since it is larger than the sum of its proper divisors (377407083634).

513521111054 is a wasteful number, since it uses less digits than its factorization.

513521111054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441928759.

The product of its (nonzero) digits is 3000, while the sum is 29.

Adding to 513521111054 its reverse (450111125315), we get a palindrome (963632236369).

The spelling of 513521111054 in words is "five hundred thirteen billion, five hundred twenty-one million, one hundred eleven thousand, fifty-four".