25716893 has 2 divisors, whose sum is σ = 25716894. Its totient is φ = 25716892.

The previous prime is 25716883. The next prime is 25716907. The reversal of 25716893 is 39861752.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24186724 + 1530169 = 4918^2 + 1237^2 .

It is a cyclic number.

It is not a de Polignac number, because 25716893 - 2⁴ = 25716877 is a prime.

It is a super-2 number, since 2×25716893² = 1322717171146898, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 25716893.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25716883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12858446 + 12858447.

It is an arithmetic number, because the mean of its divisors is an integer number (12858447).

Almost surely, 2^25716893 is an apocalyptic number.

It is an amenable number.

25716893 is a deficient number, since it is larger than the sum of its proper divisors (1).

25716893 is an equidigital number, since it uses as much as digits as its factorization.

25716893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 41.

The square root of 25716893 is about 5071.1826036931. The cubic root of 25716893 is about 295.1704195811.

The spelling of 25716893 in words is "twenty-five million, seven hundred sixteen thousand, eight hundred ninety-three".