25788042 has 24 divisors (see below), whose sum is σ = 63856416. Its totient is φ = 7367976.

The previous prime is 25788041. The next prime is 25788043. The reversal of 25788042 is 24088752.

It is a happy number.

25788042 is a `hidden beast` number, since 2 + 578 + 80 + 4 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (25788041) and next prime (25788043).

It is a super-2 number, since 2×25788042² = 1330046220387528, which contains 22 as substring.

It is a nialpdrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 25787988 and 25788006.

It is not an unprimeable number, because it can be changed into a prime (25788041) 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 11 ways as a sum of consecutive naturals, for example, 102208 + ... + 102459.

It is an arithmetic number, because the mean of its divisors is an integer number (2660684).

Almost surely, 2^25788042 is an apocalyptic number.

25788042 is an abundant number, since it is smaller than the sum of its proper divisors (38068374).

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

25788042 is a wasteful number, since it uses less digits than its factorization.

25788042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204682 (or 204679 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 25788042 is about 5078.1927887783. The cubic root of 25788042 is about 295.4423775573.

The spelling of 25788042 in words is "twenty-five million, seven hundred eighty-eight thousand, forty-two".