25775117 has 2 divisors, whose sum is σ = 25775118. Its totient is φ = 25775116.

The previous prime is 25775107. The next prime is 25775143. The reversal of 25775117 is 71157752.

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., 23755876 + 2019241 = 4874^2 + 1421^2 .

It is a cyclic number.

It is not a de Polignac number, because 25775117 - 2⁶ = 25775053 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25775107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12887558 + 12887559.

It is an arithmetic number, because the mean of its divisors is an integer number (12887559).

Almost surely, 2^25775117 is an apocalyptic number.

It is an amenable number.

25775117 is a deficient number, since it is larger than the sum of its proper divisors (1).

25775117 is an equidigital number, since it uses as much as digits as its factorization.

25775117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17150, while the sum is 35.

The square root of 25775117 is about 5076.9200308849. The cubic root of 25775117 is about 295.3930106083.

The spelling of 25775117 in words is "twenty-five million, seven hundred seventy-five thousand, one hundred seventeen".