25939943 has 8 divisors (see below), whose sum is σ = 27633312. Its totient is φ = 24265216.

The previous prime is 25939937. The next prime is 25939951. The reversal of 25939943 is 34993952.

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

It is a cyclic number.

It is not a de Polignac number, because 25939943 - 2¹⁰ = 25938919 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25939894 and 25939903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25939913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1730 + ... + 7407.

It is an arithmetic number, because the mean of its divisors is an integer number (3454164).

Almost surely, 2^25939943 is an apocalyptic number.

25939943 is a deficient number, since it is larger than the sum of its proper divisors (1693369).

25939943 is a wasteful number, since it uses less digits than its factorization.

25939943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9321.

The product of its digits is 262440, while the sum is 44.

The square root of 25939943 is about 5093.1270355254. The cubic root of 25939943 is about 296.0213301831.

The spelling of 25939943 in words is "twenty-five million, nine hundred thirty-nine thousand, nine hundred forty-three".