25676442 has 36 divisors (see below), whose sum is σ = 61154730. Its totient is φ = 7780080.

The previous prime is 25676407. The next prime is 25676447. The reversal of 25676442 is 24467652.

25676442 is a `hidden beast` number, since 2 + 5 + 6 + 7 + 644 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 25492401 + 184041 = 5049^2 + 429^2 .

It is a junction number, because it is equal to n+sod(n) for n = 25676397 and 25676406.

It is not an unprimeable number, because it can be changed into a prime (25676447) 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 17 ways as a sum of consecutive naturals, for example, 3717 + ... + 8072.

Almost surely, 2^25676442 is an apocalyptic number.

25676442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

25676442 is an abundant number, since it is smaller than the sum of its proper divisors (35478288).

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

25676442 is a wasteful number, since it uses less digits than its factorization.

25676442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11819 (or 11805 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 25676442 is about 5067.1927139196. The cubic root of 25676442 is about 295.0155770765.

It can be divided in two parts, 2567 and 6442, that added together give a palindrome (9009).

The spelling of 25676442 in words is "twenty-five million, six hundred seventy-six thousand, four hundred forty-two".