25563042 has 12 divisors (see below), whose sum is σ = 55386630. Its totient is φ = 8521008.

The previous prime is 25563029. The next prime is 25563047. The reversal of 25563042 is 24036552.

25563042 is a `hidden beast` number, since 25 + 5 + 630 + 4 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 18224361 + 7338681 = 4269^2 + 2709^2 .

It is a junction number, because it is equal to n+sod(n) for n = 25562997 and 25563015.

It is not an unprimeable number, because it can be changed into a prime (25563047) 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 5 ways as a sum of consecutive naturals, for example, 710067 + ... + 710102.

Almost surely, 2^25563042 is an apocalyptic number.

25563042 is an abundant number, since it is smaller than the sum of its proper divisors (29823588).

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

25563042 is a wasteful number, since it uses less digits than its factorization.

25563042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1420177 (or 1420174 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 25563042 is about 5055.9907041054. The cubic root of 25563042 is about 294.5806240480.

Adding to 25563042 its reverse (24036552), we get a palindrome (49599594).

The spelling of 25563042 in words is "twenty-five million, five hundred sixty-three thousand, forty-two".