25667942 has 8 divisors (see below), whose sum is σ = 38617176. Its totient is φ = 12795552.

The previous prime is 25667933. The next prime is 25667989. The reversal of 25667942 is 24976652.

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

It is a self number, because there is not a number n which added to its sum of digits gives 25667942.

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, 18368 + ... + 19715.

It is an arithmetic number, because the mean of its divisors is an integer number (4827147).

Almost surely, 2^25667942 is an apocalyptic number.

25667942 is a deficient number, since it is larger than the sum of its proper divisors (12949234).

25667942 is a wasteful number, since it uses less digits than its factorization.

25667942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38422.

The product of its digits is 181440, while the sum is 41.

The square root of 25667942 is about 5066.3539157860. The cubic root of 25667942 is about 294.9830192275.

The spelling of 25667942 in words is "twenty-five million, six hundred sixty-seven thousand, nine hundred forty-two".