22525219 has 2 divisors, whose sum is σ = 22525220. Its totient is φ = 22525218.

The previous prime is 22525207. The next prime is 22525229. The reversal of 22525219 is 91252522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22525219 - 2⁷ = 22525091 is a prime.

It is a super-2 number, since 2×22525219² = 1014770981995922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22525229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11262609 + 11262610.

It is an arithmetic number, because the mean of its divisors is an integer number (11262610).

Almost surely, 2^22525219 is an apocalyptic number.

22525219 is a deficient number, since it is larger than the sum of its proper divisors (1).

22525219 is an equidigital number, since it uses as much as digits as its factorization.

22525219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3600, while the sum is 28.

The square root of 22525219 is about 4746.0740617904. The cubic root of 22525219 is about 282.4162447821.

The spelling of 22525219 in words is "twenty-two million, five hundred twenty-five thousand, two hundred nineteen".