52222531 has 8 divisors (see below), whose sum is σ = 52676624. Its totient is φ = 51770880.

The previous prime is 52222529. The next prime is 52222549. The reversal of 52222531 is 13522225.

52222531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52222531 - 2¹ = 52222529 is a prime.

It is a super-2 number, since 2×52222531² = 5454385488091922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52222501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80896 + ... + 81538.

It is an arithmetic number, because the mean of its divisors is an integer number (6584578).

Almost surely, 2^52222531 is an apocalyptic number.

52222531 is a deficient number, since it is larger than the sum of its proper divisors (454093).

52222531 is a wasteful number, since it uses less digits than its factorization.

52222531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1221.

The product of its digits is 1200, while the sum is 22.

The square root of 52222531 is about 7226.5158271466. The cubic root of 52222531 is about 373.7827935119.

Adding to 52222531 its reverse (13522225), we get a palindrome (65744756).

The spelling of 52222531 in words is "fifty-two million, two hundred twenty-two thousand, five hundred thirty-one".