22545152 has 72 divisors (see below), whose sum is σ = 53765376. Its totient is φ = 9225216.

The previous prime is 22545143. The next prime is 22545163. The reversal of 22545152 is 25154522.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40943 + ... + 41489.

Almost surely, 2^22545152 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 22545152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26882688).

22545152 is an abundant number, since it is smaller than the sum of its proper divisors (31220224).

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

22545152 is an equidigital number, since it uses as much as digits as its factorization.

22545152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593 (or 579 counting only the distinct ones).

The product of its digits is 4000, while the sum is 26.

The square root of 22545152 is about 4748.1735435849. The cubic root of 22545152 is about 282.4995254123.

Adding to 22545152 its reverse (25154522), we get a palindrome (47699674).

The spelling of 22545152 in words is "twenty-two million, five hundred forty-five thousand, one hundred fifty-two".