22234551 has 4 divisors (see below), whose sum is σ = 29646072. Its totient is φ = 14823032.

The previous prime is 22234549. The next prime is 22234567. The reversal of 22234551 is 15543222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22234551 - 2¹ = 22234549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22234571) 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, 3705756 + ... + 3705761.

It is an arithmetic number, because the mean of its divisors is an integer number (7411518).

Almost surely, 2^22234551 is an apocalyptic number.

22234551 is a deficient number, since it is larger than the sum of its proper divisors (7411521).

22234551 is an equidigital number, since it uses as much as digits as its factorization.

22234551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7411520.

The product of its digits is 2400, while the sum is 24.

The square root of 22234551 is about 4715.3526909448. The cubic root of 22234551 is about 281.1962046247.

Adding to 22234551 its reverse (15543222), we get a palindrome (37777773).

The spelling of 22234551 in words is "twenty-two million, two hundred thirty-four thousand, five hundred fifty-one".