25865942 has 16 divisors (see below), whose sum is σ = 41176512. Its totient is φ = 12144000.

The previous prime is 25865929. The next prime is 25865951. The reversal of 25865942 is 24956852.

It is a self number, because there is not a number n which added to its sum of digits gives 25865942.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25028 + ... + 26040.

It is an arithmetic number, because the mean of its divisors is an integer number (2573532).

Almost surely, 2^25865942 is an apocalyptic number.

25865942 is a deficient number, since it is larger than the sum of its proper divisors (15310570).

25865942 is a wasteful number, since it uses less digits than its factorization.

25865942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1783.

The product of its digits is 172800, while the sum is 41.

The square root of 25865942 is about 5085.8570565835. The cubic root of 25865942 is about 295.7395673123.

The spelling of 25865942 in words is "twenty-five million, eight hundred sixty-five thousand, nine hundred forty-two".