22305552 has 20 divisors (see below), whose sum is σ = 57622800. Its totient is φ = 7435168.

The previous prime is 22305539. The next prime is 22305559. The reversal of 22305552 is 25550322.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (22305559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232302 + ... + 232397.

It is an arithmetic number, because the mean of its divisors is an integer number (2881140).

Almost surely, 2^22305552 is an apocalyptic number.

It is an amenable number.

22305552 is an abundant number, since it is smaller than the sum of its proper divisors (35317248).

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

22305552 is a wasteful number, since it uses less digits than its factorization.

22305552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464710 (or 464704 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 24.

The square root of 22305552 is about 4722.8753953497. The cubic root of 22305552 is about 281.4951987125.

Adding to 22305552 its reverse (25550322), we get a palindrome (47855874).

The spelling of 22305552 in words is "twenty-two million, three hundred five thousand, five hundred fifty-two".