25784963 has 8 divisors (see below), whose sum is σ = 26676096. Its totient is φ = 24897600.

The previous prime is 25784959. The next prime is 25784981. The reversal of 25784963 is 36948752.

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

It is a cyclic number.

It is not a de Polignac number, because 25784963 - 2² = 25784959 is a prime.

It is a super-2 number, since 2×25784963² = 1329728633822738, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25784923) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 23045 + ... + 24137.

It is an arithmetic number, because the mean of its divisors is an integer number (3334512).

Almost surely, 2^25784963 is an apocalyptic number.

25784963 is a deficient number, since it is larger than the sum of its proper divisors (891133).

25784963 is a wasteful number, since it uses less digits than its factorization.

25784963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1885.

The product of its digits is 362880, while the sum is 44.

The square root of 25784963 is about 5077.8896206987. The cubic root of 25784963 is about 295.4306188349.

The spelling of 25784963 in words is "twenty-five million, seven hundred eighty-four thousand, nine hundred sixty-three".