25374137 has 2 divisors, whose sum is σ = 25374138. Its totient is φ = 25374136.

The previous prime is 25374113. The next prime is 25374157. The reversal of 25374137 is 73147352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24790441 + 583696 = 4979^2 + 764^2 .

It is a cyclic number.

It is not a de Polignac number, because 25374137 - 2⁶ = 25374073 is a prime.

It is not a weakly prime, because it can be changed into another prime (25374157) 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, 12687068 + 12687069.

It is an arithmetic number, because the mean of its divisors is an integer number (12687069).

Almost surely, 2^25374137 is an apocalyptic number.

It is an amenable number.

25374137 is a deficient number, since it is larger than the sum of its proper divisors (1).

25374137 is an equidigital number, since it uses as much as digits as its factorization.

25374137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17640, while the sum is 32.

The square root of 25374137 is about 5037.2747592324. The cubic root of 25374137 is about 293.8532015837.

The spelling of 25374137 in words is "twenty-five million, three hundred seventy-four thousand, one hundred thirty-seven".