5623571321 has 4 divisors (see below), whose sum is σ = 5954369652. Its totient is φ = 5292772992.

The previous prime is 5623571311. The next prime is 5623571351. The reversal of 5623571321 is 1231753265.

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 2424085225 + 3199486096 = 49235^2 + 56564^2 .

It is a cyclic number.

It is not a de Polignac number, because 5623571321 - 2⁶ = 5623571257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5623571311) 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, 165399140 + ... + 165399173.

It is an arithmetic number, because the mean of its divisors is an integer number (1488592413).

Almost surely, 2^5623571321 is an apocalyptic number.

It is an amenable number.

5623571321 is a deficient number, since it is larger than the sum of its proper divisors (330798331).

5623571321 is a wasteful number, since it uses less digits than its factorization.

5623571321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330798330.

The product of its digits is 37800, while the sum is 35.

The square root of 5623571321 is about 74990.4748684791. The cubic root of 5623571321 is about 1778.2960718286.

The spelling of 5623571321 in words is "five billion, six hundred twenty-three million, five hundred seventy-one thousand, three hundred twenty-one".