22625857 has 2 divisors, whose sum is σ = 22625858. Its totient is φ = 22625856.

The previous prime is 22625849. The next prime is 22625873. The reversal of 22625857 is 75852622.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21242881 + 1382976 = 4609^2 + 1176^2 .

It is a cyclic number.

It is not a de Polignac number, because 22625857 - 2³ = 22625849 is a prime.

It is not a weakly prime, because it can be changed into another prime (22625557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11312928 + 11312929.

It is an arithmetic number, because the mean of its divisors is an integer number (11312929).

Almost surely, 2^22625857 is an apocalyptic number.

It is an amenable number.

22625857 is a deficient number, since it is larger than the sum of its proper divisors (1).

22625857 is an equidigital number, since it uses as much as digits as its factorization.

22625857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 67200, while the sum is 37.

The square root of 22625857 is about 4756.6644825970. The cubic root of 22625857 is about 282.8362123337.

The spelling of 22625857 in words is "twenty-two million, six hundred twenty-five thousand, eight hundred fifty-seven".