22250779 has 2 divisors, whose sum is σ = 22250780. Its totient is φ = 22250778.

The previous prime is 22250771. The next prime is 22250783. The reversal of 22250779 is 97705222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22250779 - 2³ = 22250771 is a prime.

It is a super-2 number, since 2×22250779² = 990194332213682, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22250771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11125389 + 11125390.

It is an arithmetic number, because the mean of its divisors is an integer number (11125390).

Almost surely, 2^22250779 is an apocalyptic number.

22250779 is a deficient number, since it is larger than the sum of its proper divisors (1).

22250779 is an equidigital number, since it uses as much as digits as its factorization.

22250779 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 22250779 is about 4717.0731391404. The cubic root of 22250779 is about 281.2645988142.

The spelling of 22250779 in words is "twenty-two million, two hundred fifty thousand, seven hundred seventy-nine".