25112137 has 2 divisors, whose sum is σ = 25112138. Its totient is φ = 25112136.

The previous prime is 25112123. The next prime is 25112141. The reversal of 25112137 is 73121152.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16088121 + 9024016 = 4011^2 + 3004^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25112137 is a prime.

It is not a weakly prime, because it can be changed into another prime (25112177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12556068 + 12556069.

It is an arithmetic number, because the mean of its divisors is an integer number (12556069).

Almost surely, 2^25112137 is an apocalyptic number.

It is an amenable number.

25112137 is a deficient number, since it is larger than the sum of its proper divisors (1).

25112137 is an equidigital number, since it uses as much as digits as its factorization.

25112137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 420, while the sum is 22.

The square root of 25112137 is about 5011.2011534162. The cubic root of 25112137 is about 292.8383092163.

Adding to 25112137 its reverse (73121152), we get a palindrome (98233289).

The spelling of 25112137 in words is "twenty-five million, one hundred twelve thousand, one hundred thirty-seven".