22268537 has 2 divisors, whose sum is σ = 22268538. Its totient is φ = 22268536.

The previous prime is 22268507. The next prime is 22268567. The reversal of 22268537 is 73586222.

It is a balanced prime because it is at equal distance from previous prime (22268507) and next prime (22268567).

It can be written as a sum of positive squares in only one way, i.e., 14891881 + 7376656 = 3859^2 + 2716^2 .

It is a cyclic number.

It is not a de Polignac number, because 22268537 - 2¹⁰ = 22267513 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 22268497 and 22268506.

It is not a weakly prime, because it can be changed into another prime (22268507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11134268 + 11134269.

It is an arithmetic number, because the mean of its divisors is an integer number (11134269).

Almost surely, 2^22268537 is an apocalyptic number.

It is an amenable number.

22268537 is a deficient number, since it is larger than the sum of its proper divisors (1).

22268537 is an equidigital number, since it uses as much as digits as its factorization.

22268537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 35.

The square root of 22268537 is about 4718.9550750140. The cubic root of 22268537 is about 281.3394032155.

The spelling of 22268537 in words is "twenty-two million, two hundred sixty-eight thousand, five hundred thirty-seven".