513052551311540 has 24 divisors (see below), whose sum is σ = 1087870652494080. Its totient is φ = 203228583431328.

The previous prime is 513052551311533. The next prime is 513052551311543. The reversal of 513052551311540 is 45113155250315.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513052551311543) 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, 124527316220 + ... + 124527320339.

It is an arithmetic number, because the mean of its divisors is an integer number (45327943853920).

Almost surely, 2^{513052551311540} is an apocalyptic number.

It is an amenable number.

513052551311540 is an abundant number, since it is smaller than the sum of its proper divisors (574818101182540).

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

513052551311540 is a wasteful number, since it uses less digits than its factorization.

513052551311540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249054636671 (or 249054636669 counting only the distinct ones).

The product of its (nonzero) digits is 225000, while the sum is 41.

The spelling of 513052551311540 in words is "five hundred thirteen trillion, fifty-two billion, five hundred fifty-one million, three hundred eleven thousand, five hundred forty".