25394942 has 16 divisors (see below), whose sum is σ = 38659680. Its totient is φ = 12509952.

The previous prime is 25394939. The next prime is 25394969. The reversal of 25394942 is 24949352.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 25394896 and 25394905.

It is a congruent number.

It is an unprimeable number.

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, 70559 + ... + 70917.

It is an arithmetic number, because the mean of its divisors is an integer number (2416230).

Almost surely, 2^25394942 is an apocalyptic number.

25394942 is a deficient number, since it is larger than the sum of its proper divisors (13264738).

25394942 is a wasteful number, since it uses less digits than its factorization.

25394942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 787.

The product of its digits is 77760, while the sum is 38.

The square root of 25394942 is about 5039.3394408394. The cubic root of 25394942 is about 293.9334925995.

The spelling of 25394942 in words is "twenty-five million, three hundred ninety-four thousand, nine hundred forty-two".