22795561 has 2 divisors, whose sum is σ = 22795562. Its totient is φ = 22795560.

The previous prime is 22795559. The next prime is 22795579. The reversal of 22795561 is 16559722.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14707225 + 8088336 = 3835^2 + 2844^2 .

It is a cyclic number.

It is not a de Polignac number, because 22795561 - 2¹ = 22795559 is a prime.

Together with 22795559, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 22795561.

It is not a weakly prime, because it can be changed into another prime (22795501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11397780 + 11397781.

It is an arithmetic number, because the mean of its divisors is an integer number (11397781).

Almost surely, 2^22795561 is an apocalyptic number.

It is an amenable number.

22795561 is a deficient number, since it is larger than the sum of its proper divisors (1).

22795561 is an equidigital number, since it uses as much as digits as its factorization.

22795561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37800, while the sum is 37.

The square root of 22795561 is about 4774.4697087739. The cubic root of 22795561 is about 283.5415842292.

The spelling of 22795561 in words is "twenty-two million, seven hundred ninety-five thousand, five hundred sixty-one".