22532711881 has 9 divisors (see below), whose sum is σ = 23163872949. Its totient is φ = 21918315744.

The previous prime is 22532711867. The next prime is 22532711939. The reversal of 22532711881 is 18811723522.

It is a happy number.

The square root of 22532711881 is 150109.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 4582071481 + 17950640400 = 67691^2 + 133980^2 .

It is not a de Polignac number, because 22532711881 - 2¹³ = 22532703689 is a prime.

It is a super-2 number, since 2×22532711881² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22532711281) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5552005 + ... + 5556061.

It is an arithmetic number, because the mean of its divisors is an integer number (2573763661).

Almost surely, 2^22532711881 is an apocalyptic number.

22532711881 is the 150109-th square number.

22532711881 is the 75055-th centered octagonal number.

It is an amenable number.

22532711881 is a deficient number, since it is larger than the sum of its proper divisors (631161068).

22532711881 is an frugal number, since it uses more digits than its factorization.

22532711881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8188 (or 4094 counting only the distinct ones).

The product of its digits is 53760, while the sum is 40.

The spelling of 22532711881 in words is "twenty-two billion, five hundred thirty-two million, seven hundred eleven thousand, eight hundred eighty-one".