5321512450520 has 128 divisors (see below), whose sum is σ = 14211902822400. Its totient is φ = 1755432669696.

The previous prime is 5321512450487. The next prime is 5321512450523. The reversal of 5321512450520 is 250542151235.

It is a happy number.

It is a super-2 number, since 2×5321512450520² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5321512450523) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2650427 + ... + 4203306.

It is an arithmetic number, because the mean of its divisors is an integer number (111030490800).

Almost surely, 2^{5321512450520} is an apocalyptic number.

It is an amenable number.

5321512450520 is an abundant number, since it is smaller than the sum of its proper divisors (8890390371880).

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

5321512450520 is a wasteful number, since it uses less digits than its factorization.

5321512450520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6853857 (or 6853853 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 35.

The spelling of 5321512450520 in words is "five trillion, three hundred twenty-one billion, five hundred twelve million, four hundred fifty thousand, five hundred twenty".