22543332252 has 96 divisors (see below), whose sum is σ = 62274562560. Its totient is φ = 6213166080.

The previous prime is 22543332247. The next prime is 22543332299. The reversal of 22543332252 is 25223334522.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 269743 + ... + 343289.

It is an arithmetic number, because the mean of its divisors is an integer number (648693360).

Almost surely, 2^22543332252 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22543332252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31137281280).

22543332252 is an abundant number, since it is smaller than the sum of its proper divisors (39731230308).

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

22543332252 is a wasteful number, since it uses less digits than its factorization.

22543332252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73691 (or 73689 counting only the distinct ones).

The product of its digits is 86400, while the sum is 33.

Adding to 22543332252 its reverse (25223334522), we get a palindrome (47766666774).

The spelling of 22543332252 in words is "twenty-two billion, five hundred forty-three million, three hundred thirty-two thousand, two hundred fifty-two".