5321512442513 has 4 divisors (see below), whose sum is σ = 5321537756340. Its totient is φ = 5321487128688.

The previous prime is 5321512442507. The next prime is 5321512442563. The reversal of 5321512442513 is 3152442151235.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1381017477889 + 3940494964624 = 1175167^2 + 1985068^2 .

It is a cyclic number.

It is not a de Polignac number, because 5321512442513 - 2¹⁴ = 5321512426129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5321512442563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12338918 + ... + 12762911.

It is an arithmetic number, because the mean of its divisors is an integer number (1330384439085).

Almost surely, 2^{5321512442513} is an apocalyptic number.

It is an amenable number.

5321512442513 is a deficient number, since it is larger than the sum of its proper divisors (25313827).

5321512442513 is a wasteful number, since it uses less digits than its factorization.

5321512442513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25313826.

The product of its digits is 144000, while the sum is 38.

Adding to 5321512442513 its reverse (3152442151235), we get a palindrome (8473954593748).

The spelling of 5321512442513 in words is "five trillion, three hundred twenty-one billion, five hundred twelve million, four hundred forty-two thousand, five hundred thirteen".