22256677 has 2 divisors, whose sum is σ = 22256678. Its totient is φ = 22256676.

The previous prime is 22256653. The next prime is 22256683. The reversal of 22256677 is 77665222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21077281 + 1179396 = 4591^2 + 1086^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22256677 is a prime.

It is a Chen prime.

It is a plaindrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22256687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11128338 + 11128339.

It is an arithmetic number, because the mean of its divisors is an integer number (11128339).

Almost surely, 2^22256677 is an apocalyptic number.

It is an amenable number.

22256677 is a deficient number, since it is larger than the sum of its proper divisors (1).

22256677 is an equidigital number, since it uses as much as digits as its factorization.

22256677 is an evil number, because the sum of its binary digits is even.

The product of its digits is 70560, while the sum is 37.

The square root of 22256677 is about 4717.6982735228. The cubic root of 22256677 is about 281.2894481622.

The spelling of 22256677 in words is "twenty-two million, two hundred fifty-six thousand, six hundred seventy-seven".