25930642 has 8 divisors (see below), whose sum is σ = 38980656. Its totient is φ = 12937092.

The previous prime is 25930631. The next prime is 25930643. The reversal of 25930642 is 24603952.

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

It is not an unprimeable number, because it can be changed into a prime (25930643) 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, 12948 + ... + 14815.

It is an arithmetic number, because the mean of its divisors is an integer number (4872582).

Almost surely, 2^25930642 is an apocalyptic number.

25930642 is a deficient number, since it is larger than the sum of its proper divisors (13050014).

25930642 is a wasteful number, since it uses less digits than its factorization.

25930642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28232.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 25930642 is about 5092.2138603951. The cubic root of 25930642 is about 295.9859455830.

The spelling of 25930642 in words is "twenty-five million, nine hundred thirty thousand, six hundred forty-two".