25506942 has 8 divisors (see below), whose sum is σ = 51013896. Its totient is φ = 8502312.

The previous prime is 25506937. The next prime is 25506973. The reversal of 25506942 is 24960552.

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

25506942 is an admirable number.

It is a congruent number.

It is an unprimeable number.

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, 2125573 + ... + 2125584.

It is an arithmetic number, because the mean of its divisors is an integer number (6376737).

Almost surely, 2^25506942 is an apocalyptic number.

25506942 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.

25506942 is a wasteful number, since it uses less digits than its factorization.

25506942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4251162.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 25506942 is about 5050.4397828308. The cubic root of 25506942 is about 294.3649731755.

The spelling of 25506942 in words is "twenty-five million, five hundred six thousand, nine hundred forty-two".