22085537 has 2 divisors, whose sum is σ = 22085538. Its totient is φ = 22085536.

The previous prime is 22085527. The next prime is 22085551. The reversal of 22085537 is 73558022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20647936 + 1437601 = 4544^2 + 1199^2 .

It is a cyclic number.

It is not a de Polignac number, because 22085537 - 2⁸ = 22085281 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22085527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11042768 + 11042769.

It is an arithmetic number, because the mean of its divisors is an integer number (11042769).

Almost surely, 2^22085537 is an apocalyptic number.

It is an amenable number.

22085537 is a deficient number, since it is larger than the sum of its proper divisors (1).

22085537 is an equidigital number, since it uses as much as digits as its factorization.

22085537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 22085537 is about 4699.5251887824. The cubic root of 22085537 is about 280.5666119763.

It can be divided in two parts, 22085 and 537, that added together give a palindrome (22622).

The spelling of 22085537 in words is "twenty-two million, eighty-five thousand, five hundred thirty-seven".