22825657 has 2 divisors, whose sum is σ = 22825658. Its totient is φ = 22825656.

The previous prime is 22825609. The next prime is 22825667. The reversal of 22825657 is 75652822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19219456 + 3606201 = 4384^2 + 1899^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22825657 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22825667) 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, 11412828 + 11412829.

It is an arithmetic number, because the mean of its divisors is an integer number (11412829).

Almost surely, 2^22825657 is an apocalyptic number.

It is an amenable number.

22825657 is a deficient number, since it is larger than the sum of its proper divisors (1).

22825657 is an equidigital number, since it uses as much as digits as its factorization.

22825657 is an odious number, because the sum of its binary digits is odd.

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

The square root of 22825657 is about 4777.6204328096. The cubic root of 22825657 is about 283.6663119458. Note that the first 3 decimals are identical.

The spelling of 22825657 in words is "twenty-two million, eight hundred twenty-five thousand, six hundred fifty-seven".