25787642 has 8 divisors (see below), whose sum is σ = 39043296. Its totient is φ = 12773212.

The previous prime is 25787621. The next prime is 25787653. The reversal of 25787642 is 24678752.

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 25787642.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60038 + ... + 60465.

It is an arithmetic number, because the mean of its divisors is an integer number (4880412).

Almost surely, 2^25787642 is an apocalyptic number.

25787642 is a deficient number, since it is larger than the sum of its proper divisors (13255654).

25787642 is a wasteful number, since it uses less digits than its factorization.

25787642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120612.

The product of its digits is 188160, while the sum is 41.

The square root of 25787642 is about 5078.1534045359. The cubic root of 25787642 is about 295.4408500075.

The spelling of 25787642 in words is "twenty-five million, seven hundred eighty-seven thousand, six hundred forty-two".