25789782 has 48 divisors (see below), whose sum is σ = 55702080. Its totient is φ = 7957632.

The previous prime is 25789769. The next prime is 25789789. The reversal of 25789782 is 28798752.

It is a super-2 number, since 2×25789782² = 1330225711215048, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25789789) 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 23 ways as a sum of consecutive naturals, for example, 185469 + ... + 185607.

It is an arithmetic number, because the mean of its divisors is an integer number (1160460).

Almost surely, 2^25789782 is an apocalyptic number.

25789782 is an abundant number, since it is smaller than the sum of its proper divisors (29912298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25789782 is a wasteful number, since it uses less digits than its factorization.

25789782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285 (or 268 counting only the distinct ones).

The product of its digits is 564480, while the sum is 48.

The square root of 25789782 is about 5078.3641066784. The cubic root of 25789782 is about 295.4490222156.

The spelling of 25789782 in words is "twenty-five million, seven hundred eighty-nine thousand, seven hundred eighty-two".