22557433 has 2 divisors, whose sum is σ = 22557434. Its totient is φ = 22557432.

The previous prime is 22557397. The next prime is 22557443. The reversal of 22557433 is 33475522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20358144 + 2199289 = 4512^2 + 1483^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22557433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22557395 and 22557404.

It is not a weakly prime, because it can be changed into another prime (22557443) 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, 11278716 + 11278717.

It is an arithmetic number, because the mean of its divisors is an integer number (11278717).

Almost surely, 2^22557433 is an apocalyptic number.

It is an amenable number.

22557433 is a deficient number, since it is larger than the sum of its proper divisors (1).

22557433 is an equidigital number, since it uses as much as digits as its factorization.

22557433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25200, while the sum is 31.

The square root of 22557433 is about 4749.4666016301. The cubic root of 22557433 is about 282.5508113370.

The spelling of 22557433 in words is "twenty-two million, five hundred fifty-seven thousand, four hundred thirty-three".