22254517 has 2 divisors, whose sum is σ = 22254518. Its totient is φ = 22254516.

The previous prime is 22254511. The next prime is 22254523. The reversal of 22254517 is 71545222.

It is a balanced prime because it is at equal distance from previous prime (22254511) and next prime (22254523).

It can be written as a sum of positive squares in only one way, i.e., 13439556 + 8814961 = 3666^2 + 2969^2 .

It is a cyclic number.

It is not a de Polignac number, because 22254517 - 2⁷ = 22254389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22254511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11127258 + 11127259.

It is an arithmetic number, because the mean of its divisors is an integer number (11127259).

Almost surely, 2^22254517 is an apocalyptic number.

It is an amenable number.

22254517 is a deficient number, since it is larger than the sum of its proper divisors (1).

22254517 is an equidigital number, since it uses as much as digits as its factorization.

22254517 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5600, while the sum is 28.

The square root of 22254517 is about 4717.4693427727. The cubic root of 22254517 is about 281.2803481984.

Adding to 22254517 its reverse (71545222), we get a palindrome (93799739).

The spelling of 22254517 in words is "twenty-two million, two hundred fifty-four thousand, five hundred seventeen".