25965043 has 4 divisors (see below), whose sum is σ = 27962368. Its totient is φ = 23967720.

The previous prime is 25965041. The next prime is 25965053. The reversal of 25965043 is 34056952.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25965043 - 2¹ = 25965041 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (25965041) 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 in 3 ways as a sum of consecutive naturals, for example, 998643 + ... + 998668.

It is an arithmetic number, because the mean of its divisors is an integer number (6990592).

Almost surely, 2^25965043 is an apocalyptic number.

25965043 is a deficient number, since it is larger than the sum of its proper divisors (1997325).

25965043 is a wasteful number, since it uses less digits than its factorization.

25965043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1997324.

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 25965043 is about 5095.5905447750. The cubic root of 25965043 is about 296.1167780947.

The spelling of 25965043 in words is "twenty-five million, nine hundred sixty-five thousand, forty-three".