25317742 has 8 divisors (see below), whose sum is σ = 38118600. Its totient is φ = 12611544.

The previous prime is 25317727. The next prime is 25317751. The reversal of 25317742 is 24771352.

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

It is a congruent number.

It is an unprimeable number.

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, 22992 + ... + 24067.

It is an arithmetic number, because the mean of its divisors is an integer number (4764825).

Almost surely, 2^25317742 is an apocalyptic number.

25317742 is a deficient number, since it is larger than the sum of its proper divisors (12800858).

25317742 is a wasteful number, since it uses less digits than its factorization.

25317742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47330.

The product of its digits is 11760, while the sum is 31.

The square root of 25317742 is about 5031.6738765544. The cubic root of 25317742 is about 293.6353400701.

The spelling of 25317742 in words is "twenty-five million, three hundred seventeen thousand, seven hundred forty-two".