22232551 has 8 divisors (see below), whose sum is σ = 24770304. Its totient is φ = 19780920.

The previous prime is 22232533. The next prime is 22232563. The reversal of 22232551 is 15523222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22232551 - 2¹⁹ = 21708263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22232501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20985 + ... + 22018.

It is an arithmetic number, because the mean of its divisors is an integer number (3096288).

Almost surely, 2^22232551 is an apocalyptic number.

22232551 is a deficient number, since it is larger than the sum of its proper divisors (2537753).

22232551 is a wasteful number, since it uses less digits than its factorization.

22232551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43061.

The product of its digits is 1200, while the sum is 22.

The square root of 22232551 is about 4715.1406129616. The cubic root of 22232551 is about 281.1877731633.

Adding to 22232551 its reverse (15523222), we get a palindrome (37755773).

It can be divided in two parts, 2223 and 2551, that added together give a palindrome (4774).

The spelling of 22232551 in words is "twenty-two million, two hundred thirty-two thousand, five hundred fifty-one".