22532254452 has 18 divisors (see below), whose sum is σ = 56956532178. Its totient is φ = 7510751472.

The previous prime is 22532254429. The next prime is 22532254499. The reversal of 22532254452 is 25445223522.

22532254452 is a `hidden beast` number, since 22 + 532 + 2 + 54 + 4 + 52 = 666.

It can be written as a sum of positive squares in only one way, i.e., 17477897616 + 5054356836 = 132204^2 + 71094^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 625895957 = 22532254452 / (2 + 2 + 5 + 3 + 2 + 2 + 5 + 4 + 4 + 5 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 312947943 + ... + 312948014.

Almost surely, 2^22532254452 is an apocalyptic number.

It is an amenable number.

22532254452 is an abundant number, since it is smaller than the sum of its proper divisors (34424277726).

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

22532254452 is a wasteful number, since it uses less digits than its factorization.

22532254452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625895967 (or 625895962 counting only the distinct ones).

The product of its digits is 192000, while the sum is 36.

Adding to 22532254452 its reverse (25445223522), we get a palindrome (47977477974).

The spelling of 22532254452 in words is "twenty-two billion, five hundred thirty-two million, two hundred fifty-four thousand, four hundred fifty-two".