25387079 has 2 divisors, whose sum is σ = 25387080. Its totient is φ = 25387078.

The previous prime is 25387049. The next prime is 25387091. The reversal of 25387079 is 97078352.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25387079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25387049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12693539 + 12693540.

It is an arithmetic number, because the mean of its divisors is an integer number (12693540).

Almost surely, 2^25387079 is an apocalyptic number.

25387079 is a deficient number, since it is larger than the sum of its proper divisors (1).

25387079 is an equidigital number, since it uses as much as digits as its factorization.

25387079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 25387079 is about 5038.5592186656. The cubic root of 25387079 is about 293.9031527307.

The spelling of 25387079 in words is "twenty-five million, three hundred eighty-seven thousand, seventy-nine".