22537441 has 2 divisors, whose sum is σ = 22537442. Its totient is φ = 22537440.

The previous prime is 22537433. The next prime is 22537457. The reversal of 22537441 is 14473522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20566225 + 1971216 = 4535^2 + 1404^2 .

It is a cyclic number.

It is not a de Polignac number, because 22537441 - 2³ = 22537433 is a prime.

It is not a weakly prime, because it can be changed into another prime (22537481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11268720 + 11268721.

It is an arithmetic number, because the mean of its divisors is an integer number (11268721).

Almost surely, 2^22537441 is an apocalyptic number.

It is an amenable number.

22537441 is a deficient number, since it is larger than the sum of its proper divisors (1).

22537441 is an equidigital number, since it uses as much as digits as its factorization.

22537441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6720, while the sum is 28.

The square root of 22537441 is about 4747.3614777053. The cubic root of 22537441 is about 282.4673144631.

The spelling of 22537441 in words is "twenty-two million, five hundred thirty-seven thousand, four hundred forty-one".