25734091 has 2 divisors, whose sum is σ = 25734092. Its totient is φ = 25734090.

The previous prime is 25734047. The next prime is 25734109. The reversal of 25734091 is 19043752.

Together with next prime (25734109) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25734091 - 2⁹ = 25733579 is a prime.

It is not a weakly prime, because it can be changed into another prime (25734011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12867045 + 12867046.

It is an arithmetic number, because the mean of its divisors is an integer number (12867046).

Almost surely, 2^25734091 is an apocalyptic number.

25734091 is a deficient number, since it is larger than the sum of its proper divisors (1).

25734091 is an equidigital number, since it uses as much as digits as its factorization.

25734091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 25734091 is about 5072.8779800031. The cubic root of 25734091 is about 295.2362026665.

The spelling of 25734091 in words is "twenty-five million, seven hundred thirty-four thousand, ninety-one".