8555261 has 16 divisors (see below), whose sum is σ = 10402560. Its totient is φ = 6928320.

The previous prime is 8555227. The next prime is 8555279. The reversal of 8555261 is 1625558.

8555261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8555261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8555221) 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, 3116 + ... + 5178.

It is an arithmetic number, because the mean of its divisors is an integer number (650160).

Almost surely, 2^8555261 is an apocalyptic number.

It is an amenable number.

8555261 is a deficient number, since it is larger than the sum of its proper divisors (1847299).

8555261 is a wasteful number, since it uses less digits than its factorization.

8555261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2116.

The product of its digits is 12000, while the sum is 32.

The square root of 8555261 is about 2924.9377771160. The cubic root of 8555261 is about 204.5240674444.

It can be divided in two parts, 855 and 5261, that added together give a palindrome (6116).

The spelling of 8555261 in words is "eight million, five hundred fifty-five thousand, two hundred sixty-one".