25338637 has 2 divisors, whose sum is σ = 25338638. Its totient is φ = 25338636.

The previous prime is 25338629. The next prime is 25338661. The reversal of 25338637 is 73683352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14243076 + 11095561 = 3774^2 + 3331^2 .

It is a cyclic number.

It is not a de Polignac number, because 25338637 - 2³ = 25338629 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25338596 and 25338605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25338667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12669318 + 12669319.

It is an arithmetic number, because the mean of its divisors is an integer number (12669319).

Almost surely, 2^25338637 is an apocalyptic number.

It is an amenable number.

25338637 is a deficient number, since it is larger than the sum of its proper divisors (1).

25338637 is an equidigital number, since it uses as much as digits as its factorization.

25338637 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 37.

The square root of 25338637 is about 5033.7497951328. The cubic root of 25338637 is about 293.7160979737.

The spelling of 25338637 in words is "twenty-five million, three hundred thirty-eight thousand, six hundred thirty-seven".