22725869 has 2 divisors, whose sum is σ = 22725870. Its totient is φ = 22725868.

The previous prime is 22725853. The next prime is 22725929. The reversal of 22725869 is 96852722.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13053769 + 9672100 = 3613^2 + 3110^2 .

It is a cyclic number.

It is not a de Polignac number, because 22725869 - 2⁴ = 22725853 is a prime.

It is a super-2 number, since 2×22725869² = 1032930243610322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22725809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11362934 + 11362935.

It is an arithmetic number, because the mean of its divisors is an integer number (11362935).

Almost surely, 2^22725869 is an apocalyptic number.

It is an amenable number.

22725869 is a deficient number, since it is larger than the sum of its proper divisors (1).

22725869 is an equidigital number, since it uses as much as digits as its factorization.

22725869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 41.

The square root of 22725869 is about 4767.1657197962. The cubic root of 22725869 is about 283.2523356321.

The spelling of 22725869 in words is "twenty-two million, seven hundred twenty-five thousand, eight hundred sixty-nine".