22492517 has 2 divisors, whose sum is σ = 22492518. Its totient is φ = 22492516.

The previous prime is 22492501. The next prime is 22492531. The reversal of 22492517 is 71529422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21520321 + 972196 = 4639^2 + 986^2 .

It is a cyclic number.

It is not a de Polignac number, because 22492517 - 2⁴ = 22492501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22492117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11246258 + 11246259.

It is an arithmetic number, because the mean of its divisors is an integer number (11246259).

Almost surely, 2^22492517 is an apocalyptic number.

It is an amenable number.

22492517 is a deficient number, since it is larger than the sum of its proper divisors (1).

22492517 is an equidigital number, since it uses as much as digits as its factorization.

22492517 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 32.

The square root of 22492517 is about 4742.6276472015. The cubic root of 22492517 is about 282.2795084270.

The spelling of 22492517 in words is "twenty-two million, four hundred ninety-two thousand, five hundred seventeen".