22475857 has 2 divisors, whose sum is σ = 22475858. Its totient is φ = 22475856.

The previous prime is 22475839. The next prime is 22475891. The reversal of 22475857 is 75857422.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20757136 + 1718721 = 4556^2 + 1311^2 .

It is a cyclic number.

It is not a de Polignac number, because 22475857 - 2¹¹ = 22473809 is a prime.

It is not a weakly prime, because it can be changed into another prime (22470857) 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, 11237928 + 11237929.

It is an arithmetic number, because the mean of its divisors is an integer number (11237929).

Almost surely, 2^22475857 is an apocalyptic number.

It is an amenable number.

22475857 is a deficient number, since it is larger than the sum of its proper divisors (1).

22475857 is an equidigital number, since it uses as much as digits as its factorization.

22475857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 156800, while the sum is 40.

The square root of 22475857 is about 4740.8709115520. The cubic root of 22475857 is about 282.2097972694.

It can be divided in two parts, 22475 and 857, that added together give a palindrome (23332).

The spelling of 22475857 in words is "twenty-two million, four hundred seventy-five thousand, eight hundred fifty-seven".