22755917 has 2 divisors, whose sum is σ = 22755918. Its totient is φ = 22755916.

The previous prime is 22755899. The next prime is 22755949. The reversal of 22755917 is 71955722.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18957316 + 3798601 = 4354^2 + 1949^2 .

It is a cyclic number.

It is not a de Polignac number, because 22755917 - 2²⁴ = 5978701 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22754917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11377958 + 11377959.

It is an arithmetic number, because the mean of its divisors is an integer number (11377959).

Almost surely, 2^22755917 is an apocalyptic number.

It is an amenable number.

22755917 is a deficient number, since it is larger than the sum of its proper divisors (1).

22755917 is an equidigital number, since it uses as much as digits as its factorization.

22755917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 44100, while the sum is 38.

The square root of 22755917 is about 4770.3162368967. The cubic root of 22755917 is about 283.3771188003.

It can be divided in two parts, 2275 and 5917, that added together give a 13-th power (8192 = 2¹³).

The spelling of 22755917 in words is "twenty-two million, seven hundred fifty-five thousand, nine hundred seventeen".