22495597 has 2 divisors, whose sum is σ = 22495598. Its totient is φ = 22495596.

The previous prime is 22495589. The next prime is 22495609. The reversal of 22495597 is 79559422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15792676 + 6702921 = 3974^2 + 2589^2 .

It is a cyclic number.

It is not a de Polignac number, because 22495597 - 2³ = 22495589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22495507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11247798 + 11247799.

It is an arithmetic number, because the mean of its divisors is an integer number (11247799).

Almost surely, 2^22495597 is an apocalyptic number.

It is an amenable number.

22495597 is a deficient number, since it is larger than the sum of its proper divisors (1).

22495597 is an equidigital number, since it uses as much as digits as its factorization.

22495597 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 226800, while the sum is 43.

The square root of 22495597 is about 4742.9523505935. The cubic root of 22495597 is about 282.2923924335.

It can be divided in two parts, 2249 and 5597, that multiplied together give a triangular number (12587653 = T₅₀₁₇).

The spelling of 22495597 in words is "twenty-two million, four hundred ninety-five thousand, five hundred ninety-seven".