5215325521 has 4 divisors (see below), whose sum is σ = 5960372032. Its totient is φ = 4470279012.

The previous prime is 5215325513. The next prime is 5215325537. The reversal of 5215325521 is 1255235125.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5215325521 - 2³ = 5215325513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5215325551) 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, 372523245 + ... + 372523258.

It is an arithmetic number, because the mean of its divisors is an integer number (1490093008).

Almost surely, 2^5215325521 is an apocalyptic number.

It is an amenable number.

5215325521 is a deficient number, since it is larger than the sum of its proper divisors (745046511).

5215325521 is an equidigital number, since it uses as much as digits as its factorization.

5215325521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745046510.

The product of its digits is 15000, while the sum is 31.

The square root of 5215325521 is about 72217.2106980047. The cubic root of 5215325521 is about 1734.1785369546.

The spelling of 5215325521 in words is "five billion, two hundred fifteen million, three hundred twenty-five thousand, five hundred twenty-one".