25741591 has 2 divisors, whose sum is σ = 25741592. Its totient is φ = 25741590.

The previous prime is 25741579. The next prime is 25741609. The reversal of 25741591 is 19514752.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25741591 - 2¹⁹ = 25217303 is a prime.

It is a super-2 number, since 2×25741591² = 1325259014422562, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25741511) 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, 12870795 + 12870796.

It is an arithmetic number, because the mean of its divisors is an integer number (12870796).

Almost surely, 2^25741591 is an apocalyptic number.

25741591 is a deficient number, since it is larger than the sum of its proper divisors (1).

25741591 is an equidigital number, since it uses as much as digits as its factorization.

25741591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12600, while the sum is 34.

The square root of 25741591 is about 5073.6171515005. The cubic root of 25741591 is about 295.2648813098.

The spelling of 25741591 in words is "twenty-five million, seven hundred forty-one thousand, five hundred ninety-one".