22988551 has 2 divisors, whose sum is σ = 22988552. Its totient is φ = 22988550.

The previous prime is 22988549. The next prime is 22988597. The reversal of 22988551 is 15588922.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22988551 - 2¹ = 22988549 is a prime.

Together with 22988549, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22988501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11494275 + 11494276.

It is an arithmetic number, because the mean of its divisors is an integer number (11494276).

Almost surely, 2^22988551 is an apocalyptic number.

22988551 is a deficient number, since it is larger than the sum of its proper divisors (1).

22988551 is an equidigital number, since it uses as much as digits as its factorization.

22988551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 57600, while the sum is 40.

The square root of 22988551 is about 4794.6377339691. The cubic root of 22988551 is about 284.3395025691.

The spelling of 22988551 in words is "twenty-two million, nine hundred eighty-eight thousand, five hundred fifty-one".