22503153522252 has 96 divisors (see below), whose sum is σ = 56788234675200. Its totient is φ = 6894438469632.

The previous prime is 22503153522233. The next prime is 22503153522257. The reversal of 22503153522252 is 25222535130522.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 22503153522252.

It is not an unprimeable number, because it can be changed into a prime (22503153522257) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 546450999 + ... + 546492177.

It is an arithmetic number, because the mean of its divisors is an integer number (591544111200).

Almost surely, 2^{22503153522252} 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 22503153522252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28394117337600).

22503153522252 is an abundant number, since it is smaller than the sum of its proper divisors (34285081152948).

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

22503153522252 is a wasteful number, since it uses less digits than its factorization.

22503153522252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56095 (or 56093 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 39.

Adding to 22503153522252 its reverse (25222535130522), we get a palindrome (47725688652774).

The spelling of 22503153522252 in words is "twenty-two trillion, five hundred three billion, one hundred fifty-three million, five hundred twenty-two thousand, two hundred fifty-two".