25237117 has 2 divisors, whose sum is σ = 25237118. Its totient is φ = 25237116.

The previous prime is 25237057. The next prime is 25237123. The reversal of 25237117 is 71173252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14907321 + 10329796 = 3861^2 + 3214^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25237117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25237717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12618558 + 12618559.

It is an arithmetic number, because the mean of its divisors is an integer number (12618559).

Almost surely, 2^25237117 is an apocalyptic number.

It is an amenable number.

25237117 is a deficient number, since it is larger than the sum of its proper divisors (1).

25237117 is an equidigital number, since it uses as much as digits as its factorization.

25237117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2940, while the sum is 28.

The square root of 25237117 is about 5023.6557405937. The cubic root of 25237117 is about 293.3233121863.

The spelling of 25237117 in words is "twenty-five million, two hundred thirty-seven thousand, one hundred seventeen".