25439093 has 2 divisors, whose sum is σ = 25439094. Its totient is φ = 25439092.

The previous prime is 25439083. The next prime is 25439111. The reversal of 25439093 is 39093452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14303524 + 11135569 = 3782^2 + 3337^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25439093 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25439023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12719546 + 12719547.

It is an arithmetic number, because the mean of its divisors is an integer number (12719547).

Almost surely, 2^25439093 is an apocalyptic number.

It is an amenable number.

25439093 is a deficient number, since it is larger than the sum of its proper divisors (1).

25439093 is an equidigital number, since it uses as much as digits as its factorization.

25439093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29160, while the sum is 35.

The square root of 25439093 is about 5043.7181721425. The cubic root of 25439093 is about 294.1037357412.

The spelling of 25439093 in words is "twenty-five million, four hundred thirty-nine thousand, ninety-three".