22752857 has 2 divisors, whose sum is σ = 22752858. Its totient is φ = 22752856.

The previous prime is 22752833. The next prime is 22752871. The reversal of 22752857 is 75825722.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18156121 + 4596736 = 4261^2 + 2144^2 .

It is a cyclic number.

It is not a de Polignac number, because 22752857 - 2⁸ = 22752601 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22752857.

It is not a weakly prime, because it can be changed into another prime (22752887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11376428 + 11376429.

It is an arithmetic number, because the mean of its divisors is an integer number (11376429).

Almost surely, 2^22752857 is an apocalyptic number.

It is an amenable number.

22752857 is a deficient number, since it is larger than the sum of its proper divisors (1).

22752857 is an equidigital number, since it uses as much as digits as its factorization.

22752857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 78400, while the sum is 38.

The square root of 22752857 is about 4769.9954926603. The cubic root of 22752857 is about 283.3644162747.

The spelling of 22752857 in words is "twenty-two million, seven hundred fifty-two thousand, eight hundred fifty-seven".