25249937 has 2 divisors, whose sum is σ = 25249938. Its totient is φ = 25249936.

The previous prime is 25249927. The next prime is 25249957. The reversal of 25249937 is 73994252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14167696 + 11082241 = 3764^2 + 3329^2 .

It is a cyclic number.

It is not a de Polignac number, because 25249937 - 2⁴ = 25249921 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25249894 and 25249903.

It is not a weakly prime, because it can be changed into another prime (25249907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12624968 + 12624969.

It is an arithmetic number, because the mean of its divisors is an integer number (12624969).

Almost surely, 2^25249937 is an apocalyptic number.

It is an amenable number.

25249937 is a deficient number, since it is larger than the sum of its proper divisors (1).

25249937 is an equidigital number, since it uses as much as digits as its factorization.

25249937 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 41.

The square root of 25249937 is about 5024.9315418222. The cubic root of 25249937 is about 293.3729714284.

The spelling of 25249937 in words is "twenty-five million, two hundred forty-nine thousand, nine hundred thirty-seven".