25974097 has 2 divisors, whose sum is σ = 25974098. Its totient is φ = 25974096.

The previous prime is 25974089. The next prime is 25974119. The reversal of 25974097 is 79047952.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25897921 + 76176 = 5089^2 + 276^2 .

It is a cyclic number.

It is not a de Polignac number, because 25974097 - 2³ = 25974089 is a prime.

It is not a weakly prime, because it can be changed into another prime (25974017) 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, 12987048 + 12987049.

It is an arithmetic number, because the mean of its divisors is an integer number (12987049).

Almost surely, 2^25974097 is an apocalyptic number.

It is an amenable number.

25974097 is a deficient number, since it is larger than the sum of its proper divisors (1).

25974097 is an equidigital number, since it uses as much as digits as its factorization.

25974097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 158760, while the sum is 43.

The square root of 25974097 is about 5096.4788825227. The cubic root of 25974097 is about 296.1511926952.

The spelling of 25974097 in words is "twenty-five million, nine hundred seventy-four thousand, ninety-seven".