22425779 has 2 divisors, whose sum is σ = 22425780. Its totient is φ = 22425778.

The previous prime is 22425763. The next prime is 22425791. The reversal of 22425779 is 97752422.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22425779 - 2⁴ = 22425763 is a prime.

It is not a weakly prime, because it can be changed into another prime (22425709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11212889 + 11212890.

It is an arithmetic number, because the mean of its divisors is an integer number (11212890).

Almost surely, 2^22425779 is an apocalyptic number.

22425779 is a deficient number, since it is larger than the sum of its proper divisors (1).

22425779 is an equidigital number, since it uses as much as digits as its factorization.

22425779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 70560, while the sum is 38.

The square root of 22425779 is about 4735.5864473157. The cubic root of 22425779 is about 282.0000461077. Note that the first 4 decimals are identical.

The spelling of 22425779 in words is "twenty-two million, four hundred twenty-five thousand, seven hundred seventy-nine".