22455497 has 2 divisors, whose sum is σ = 22455498. Its totient is φ = 22455496.

The previous prime is 22455493. The next prime is 22455509. The reversal of 22455497 is 79455422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19882681 + 2572816 = 4459^2 + 1604^2 .

It is a cyclic number.

It is not a de Polignac number, because 22455497 - 2² = 22455493 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22455497.

It is not a weakly prime, because it can be changed into another prime (22455491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11227748 + 11227749.

It is an arithmetic number, because the mean of its divisors is an integer number (11227749).

Almost surely, 2^22455497 is an apocalyptic number.

It is an amenable number.

22455497 is a deficient number, since it is larger than the sum of its proper divisors (1).

22455497 is an equidigital number, since it uses as much as digits as its factorization.

22455497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 100800, while the sum is 38.

The square root of 22455497 is about 4738.7231402562. The cubic root of 22455497 is about 282.1245572523.

The spelling of 22455497 in words is "twenty-two million, four hundred fifty-five thousand, four hundred ninety-seven".