22652521 has 2 divisors, whose sum is σ = 22652522. Its totient is φ = 22652520.

The previous prime is 22652501. The next prime is 22652527. The reversal of 22652521 is 12525622.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17106496 + 5546025 = 4136^2 + 2355^2 .

It is a cyclic number.

It is not a de Polignac number, because 22652521 - 2¹³ = 22644329 is a prime.

It is not a weakly prime, because it can be changed into another prime (22652527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11326260 + 11326261.

It is an arithmetic number, because the mean of its divisors is an integer number (11326261).

Almost surely, 2^22652521 is an apocalyptic number.

It is an amenable number.

22652521 is a deficient number, since it is larger than the sum of its proper divisors (1).

22652521 is an equidigital number, since it uses as much as digits as its factorization.

22652521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2400, while the sum is 25.

The square root of 22652521 is about 4759.4664616951. The cubic root of 22652521 is about 282.9472738241.

The spelling of 22652521 in words is "twenty-two million, six hundred fifty-two thousand, five hundred twenty-one".