22256453 has 2 divisors, whose sum is σ = 22256454. Its totient is φ = 22256452.

The previous prime is 22256447. The next prime is 22256471. The reversal of 22256453 is 35465222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20775364 + 1481089 = 4558^2 + 1217^2 .

It is a cyclic number.

It is not a de Polignac number, because 22256453 - 2¹² = 22252357 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22256473) 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, 11128226 + 11128227.

It is an arithmetic number, because the mean of its divisors is an integer number (11128227).

Almost surely, 2^22256453 is an apocalyptic number.

It is an amenable number.

22256453 is a deficient number, since it is larger than the sum of its proper divisors (1).

22256453 is an equidigital number, since it uses as much as digits as its factorization.

22256453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14400, while the sum is 29.

The square root of 22256453 is about 4717.6745330724. The cubic root of 22256453 is about 281.2885044896.

The spelling of 22256453 in words is "twenty-two million, two hundred fifty-six thousand, four hundred fifty-three".