25997435 has 8 divisors (see below), whose sum is σ = 31225056. Its totient is φ = 20779200.

The previous prime is 25997357. The next prime is 25997443. The reversal of 25997435 is 53479952.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25997435 - 2¹⁴ = 25981051 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 7562 + ... + 10448.

It is an arithmetic number, because the mean of its divisors is an integer number (3903132).

Almost surely, 2^25997435 is an apocalyptic number.

25997435 is a deficient number, since it is larger than the sum of its proper divisors (5227621).

25997435 is a wasteful number, since it uses less digits than its factorization.

25997435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4693.

The product of its digits is 340200, while the sum is 44.

The square root of 25997435 is about 5098.7679884458. The cubic root of 25997435 is about 296.2398644660.

The spelling of 25997435 in words is "twenty-five million, nine hundred ninety-seven thousand, four hundred thirty-five".