22732251 has 16 divisors (see below), whose sum is σ = 31168896. Its totient is φ = 14728896.

The previous prime is 22732249. The next prime is 22732253. The reversal of 22732251 is 15223722.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22732249) and next prime (22732253).

It is not a de Polignac number, because 22732251 - 2¹ = 22732249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22732253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40096 + ... + 40658.

It is an arithmetic number, because the mean of its divisors is an integer number (1948056).

Almost surely, 2^22732251 is an apocalyptic number.

22732251 is a deficient number, since it is larger than the sum of its proper divisors (8436645).

22732251 is a wasteful number, since it uses less digits than its factorization.

22732251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 922.

The product of its digits is 1680, while the sum is 24.

The square root of 22732251 is about 4767.8350432875. The cubic root of 22732251 is about 283.2788479621.

Adding to 22732251 its reverse (15223722), we get a palindrome (37955973).

The spelling of 22732251 in words is "twenty-two million, seven hundred thirty-two thousand, two hundred fifty-one".