25744871 has 2 divisors, whose sum is σ = 25744872. Its totient is φ = 25744870.

The previous prime is 25744853. The next prime is 25744879. The reversal of 25744871 is 17844752.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25744871 - 2¹⁴ = 25728487 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25744879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12872435 + 12872436.

It is an arithmetic number, because the mean of its divisors is an integer number (12872436).

Almost surely, 2^25744871 is an apocalyptic number.

25744871 is a deficient number, since it is larger than the sum of its proper divisors (1).

25744871 is an equidigital number, since it uses as much as digits as its factorization.

25744871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62720, while the sum is 38.

The square root of 25744871 is about 5073.9403819911. The cubic root of 25744871 is about 295.2774216856.

The spelling of 25744871 in words is "twenty-five million, seven hundred forty-four thousand, eight hundred seventy-one".