22425869 has 2 divisors, whose sum is σ = 22425870. Its totient is φ = 22425868.

The previous prime is 22425859. The next prime is 22425877. The reversal of 22425869 is 96852422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16728100 + 5697769 = 4090^2 + 2387^2 .

It is a cyclic number.

It is not a de Polignac number, because 22425869 - 2²⁴ = 5648653 is a prime.

It is a super-2 number, since 2×22425869² = 1005839200810322, which contains 22 as substring.

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 (22425859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11212934 + 11212935.

It is an arithmetic number, because the mean of its divisors is an integer number (11212935).

Almost surely, 2^22425869 is an apocalyptic number.

It is an amenable number.

22425869 is a deficient number, since it is larger than the sum of its proper divisors (1).

22425869 is an equidigital number, since it uses as much as digits as its factorization.

22425869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69120, while the sum is 38.

The square root of 22425869 is about 4735.5959498251. The cubic root of 22425869 is about 282.0004233516. Note that the first 3 decimals are identical.

The spelling of 22425869 in words is "twenty-two million, four hundred twenty-five thousand, eight hundred sixty-nine".