25942542 has 8 divisors (see below), whose sum is σ = 51885096. Its totient is φ = 8647512.

The previous prime is 25942541. The next prime is 25942577. The reversal of 25942542 is 24524952.

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

25942542 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25942541) 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, 2161873 + ... + 2161884.

It is an arithmetic number, because the mean of its divisors is an integer number (6485637).

Almost surely, 2^25942542 is an apocalyptic number.

25942542 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25942542 is a wasteful number, since it uses less digits than its factorization.

25942542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4323762.

The product of its digits is 28800, while the sum is 33.

The square root of 25942542 is about 5093.3821769037. The cubic root of 25942542 is about 296.0312162720.

The spelling of 25942542 in words is "twenty-five million, nine hundred forty-two thousand, five hundred forty-two".