25799942 has 8 divisors (see below), whose sum is σ = 44228496. Its totient is φ = 11057112.

The previous prime is 25799941. The next prime is 25799953. The reversal of 25799942 is 24999752.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25799941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 921413 + ... + 921440.

It is an arithmetic number, because the mean of its divisors is an integer number (5528562).

Almost surely, 2^25799942 is an apocalyptic number.

25799942 is a deficient number, since it is larger than the sum of its proper divisors (18428554).

25799942 is a wasteful number, since it uses less digits than its factorization.

25799942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1842862.

The product of its digits is 408240, while the sum is 47.

The square root of 25799942 is about 5079.3643303075. The cubic root of 25799942 is about 295.4878149432.

It can be divided in two parts, 2579 and 9942, that added together give a palindrome (12521).

The spelling of 25799942 in words is "twenty-five million, seven hundred ninety-nine thousand, nine hundred forty-two".