22942551 has 4 divisors (see below), whose sum is σ = 30590072. Its totient is φ = 15295032.

The previous prime is 22942541. The next prime is 22942559. The reversal of 22942551 is 15524922.

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

It is not a de Polignac number, because 22942551 - 2¹¹ = 22940503 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 (22942559) 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, 3823756 + ... + 3823761.

It is an arithmetic number, because the mean of its divisors is an integer number (7647518).

Almost surely, 2^22942551 is an apocalyptic number.

22942551 is a deficient number, since it is larger than the sum of its proper divisors (7647521).

22942551 is an equidigital number, since it uses as much as digits as its factorization.

22942551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7647520.

The product of its digits is 7200, while the sum is 30.

The square root of 22942551 is about 4789.8383062479. The cubic root of 22942551 is about 284.1497218544.

The spelling of 22942551 in words is "twenty-two million, nine hundred forty-two thousand, five hundred fifty-one".