26825857 has 2 divisors, whose sum is σ = 26825858. Its totient is φ = 26825856.

The previous prime is 26825831. The next prime is 26825867. The reversal of 26825857 is 75852862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24364096 + 2461761 = 4936^2 + 1569^2 .

It is a cyclic number.

It is not a de Polignac number, because 26825857 - 2¹¹ = 26823809 is a prime.

It is not a weakly prime, because it can be changed into another prime (26825867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13412928 + 13412929.

It is an arithmetic number, because the mean of its divisors is an integer number (13412929).

Almost surely, 2^26825857 is an apocalyptic number.

It is an amenable number.

26825857 is a deficient number, since it is larger than the sum of its proper divisors (1).

26825857 is an equidigital number, since it uses as much as digits as its factorization.

26825857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 268800, while the sum is 43.

The square root of 26825857 is about 5179.3683977875. The cubic root of 26825857 is about 299.3536342974.

The spelling of 26825857 in words is "twenty-six million, eight hundred twenty-five thousand, eight hundred fifty-seven".