25759387 has 2 divisors, whose sum is σ = 25759388. Its totient is φ = 25759386.

The previous prime is 25759381. The next prime is 25759397. The reversal of 25759387 is 78395752.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25759387 - 2¹¹ = 25757339 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25759381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12879693 + 12879694.

It is an arithmetic number, because the mean of its divisors is an integer number (12879694).

Almost surely, 2^25759387 is an apocalyptic number.

25759387 is a deficient number, since it is larger than the sum of its proper divisors (1).

25759387 is an equidigital number, since it uses as much as digits as its factorization.

25759387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 529200, while the sum is 46.

The square root of 25759387 is about 5075.3706268607. The cubic root of 25759387 is about 295.3329077113.

The spelling of 25759387 in words is "twenty-five million, seven hundred fifty-nine thousand, three hundred eighty-seven".