22276551 has 16 divisors (see below), whose sum is σ = 32497920. Its totient is φ = 13461120.

The previous prime is 22276549. The next prime is 22276559. The reversal of 22276551 is 15567222.

It is not a de Polignac number, because 22276551 - 2¹ = 22276549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22276559) 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, 13510 + ... + 15068.

It is an arithmetic number, because the mean of its divisors is an integer number (2031120).

Almost surely, 2^22276551 is an apocalyptic number.

22276551 is a deficient number, since it is larger than the sum of its proper divisors (10221369).

22276551 is a wasteful number, since it uses less digits than its factorization.

22276551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2006.

The product of its digits is 8400, while the sum is 30.

The square root of 22276551 is about 4719.8041272917. The cubic root of 22276551 is about 281.3731486379.

It can be divided in two parts, 2227 and 6551, that added together give a palindrome (8778).

The spelling of 22276551 in words is "twenty-two million, two hundred seventy-six thousand, five hundred fifty-one".