25894867 has 2 divisors, whose sum is σ = 25894868. Its totient is φ = 25894866.

The previous prime is 25894837. The next prime is 25894871. The reversal of 25894867 is 76849852.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25894867 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25894867.

It is not a weakly prime, because it can be changed into another prime (25894837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12947433 + 12947434.

It is an arithmetic number, because the mean of its divisors is an integer number (12947434).

Almost surely, 2^25894867 is an apocalyptic number.

25894867 is a deficient number, since it is larger than the sum of its proper divisors (1).

25894867 is an equidigital number, since it uses as much as digits as its factorization.

25894867 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 967680, while the sum is 49.

The square root of 25894867 is about 5088.6999322027. The cubic root of 25894867 is about 295.8497647335.

The spelling of 25894867 in words is "twenty-five million, eight hundred ninety-four thousand, eight hundred sixty-seven".