22538077 has 2 divisors, whose sum is σ = 22538078. Its totient is φ = 22538076.

The previous prime is 22538053. The next prime is 22538081. The reversal of 22538077 is 77083522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20985561 + 1552516 = 4581^2 + 1246^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22538077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22538777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11269038 + 11269039.

It is an arithmetic number, because the mean of its divisors is an integer number (11269039).

Almost surely, 2^22538077 is an apocalyptic number.

It is an amenable number.

22538077 is a deficient number, since it is larger than the sum of its proper divisors (1).

22538077 is an equidigital number, since it uses as much as digits as its factorization.

22538077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 22538077 is about 4747.4284618096. The cubic root of 22538077 is about 282.4699714865.

The spelling of 22538077 in words is "twenty-two million, five hundred thirty-eight thousand, seventy-seven".