22551233 has 16 divisors (see below), whose sum is σ = 24508800. Its totient is φ = 20684160.

The previous prime is 22551227. The next prime is 22551251. The reversal of 22551233 is 33215522.

It is not a de Polignac number, because 22551233 - 2¹⁸ = 22289089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22551199 and 22551208.

It is not an unprimeable number, because it can be changed into a prime (22551203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98363 + ... + 98591.

It is an arithmetic number, because the mean of its divisors is an integer number (1531800).

Almost surely, 2^22551233 is an apocalyptic number.

It is an amenable number.

22551233 is a deficient number, since it is larger than the sum of its proper divisors (1957567).

22551233 is a wasteful number, since it uses less digits than its factorization.

22551233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392.

The product of its digits is 1800, while the sum is 23.

The square root of 22551233 is about 4748.8138519003. The cubic root of 22551233 is about 282.5249222276.

Adding to 22551233 its reverse (33215522), we get a palindrome (55766755).

The spelling of 22551233 in words is "twenty-two million, five hundred fifty-one thousand, two hundred thirty-three".