22088551 has 2 divisors, whose sum is σ = 22088552. Its totient is φ = 22088550.

The previous prime is 22088531. The next prime is 22088557. The reversal of 22088551 is 15588022.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22088551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22088557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11044275 + 11044276.

It is an arithmetic number, because the mean of its divisors is an integer number (11044276).

Almost surely, 2^22088551 is an apocalyptic number.

22088551 is a deficient number, since it is larger than the sum of its proper divisors (1).

22088551 is an equidigital number, since it uses as much as digits as its factorization.

22088551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6400, while the sum is 31.

The square root of 22088551 is about 4699.8458485359. The cubic root of 22088551 is about 280.5793743149.

The spelling of 22088551 in words is "twenty-two million, eighty-eight thousand, five hundred fifty-one".