25680061 has 16 divisors (see below), whose sum is σ = 28740096. Its totient is φ = 22750000.

The previous prime is 25680049. The next prime is 25680079. The reversal of 25680061 is 16008652.

It is a cyclic number.

It is not a de Polignac number, because 25680061 - 2¹⁷ = 25548989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25600061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102186 + ... + 102436.

It is an arithmetic number, because the mean of its divisors is an integer number (1796256).

Almost surely, 2^25680061 is an apocalyptic number.

It is an amenable number.

25680061 is a deficient number, since it is larger than the sum of its proper divisors (3060035).

25680061 is a wasteful number, since it uses less digits than its factorization.

25680061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 25680061 is about 5067.5498024193. The cubic root of 25680061 is about 295.0294368787.

It can be divided in two parts, 25 and 680061, that added together give a palindrome (680086).

The spelling of 25680061 in words is "twenty-five million, six hundred eighty thousand, sixty-one".