25555668 has 24 divisors (see below), whose sum is σ = 62223168. Its totient is φ = 8148096.

The previous prime is 25555667. The next prime is 25555679. The reversal of 25555668 is 86655552.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25555661) 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 7 ways as a sum of consecutive naturals, for example, 46021 + ... + 46572.

It is an arithmetic number, because the mean of its divisors is an integer number (2592632).

Almost surely, 2^25555668 is an apocalyptic number.

It is an amenable number.

25555668 is an abundant number, since it is smaller than the sum of its proper divisors (36667500).

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

25555668 is a wasteful number, since it uses less digits than its factorization.

25555668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92623 (or 92621 counting only the distinct ones).

The product of its digits is 360000, while the sum is 42.

The square root of 25555668 is about 5055.2614175728. The cubic root of 25555668 is about 294.5522960889.

The spelling of 25555668 in words is "twenty-five million, five hundred fifty-five thousand, six hundred sixty-eight".