22551273 has 12 divisors (see below), whose sum is σ = 33108868. Its totient is φ = 14787360.

The previous prime is 22551251. The next prime is 22551281. The reversal of 22551273 is 37215522.

It can be written as a sum of positive squares in 2 ways, for example, as 10419984 + 12131289 = 3228^2 + 3483^2 .

It is not a de Polignac number, because 22551273 - 2⁶ = 22551209 is a prime.

It is a Duffinian number.

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 11 ways as a sum of consecutive naturals, for example, 19990 + ... + 21087.

Almost surely, 2^22551273 is an apocalyptic number.

It is an amenable number.

22551273 is a deficient number, since it is larger than the sum of its proper divisors (10557595).

22551273 is a wasteful number, since it uses less digits than its factorization.

22551273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41144 (or 41141 counting only the distinct ones).

The product of its digits is 4200, while the sum is 27.

The square root of 22551273 is about 4748.8180634764. The cubic root of 22551273 is about 282.5250892694.

Adding to 22551273 its reverse (37215522), we get a palindrome (59766795).

The spelling of 22551273 in words is "twenty-two million, five hundred fifty-one thousand, two hundred seventy-three".