8255961 has 36 divisors (see below), whose sum is σ = 14087892. Its totient is φ = 4644864.

The previous prime is 8255939. The next prime is 8255963. The reversal of 8255961 is 1695528.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2822400 + 5433561 = 1680^2 + 2331^2 .

It is not a de Polignac number, because 8255961 - 2⁹ = 8255449 is a prime.

Its product of digits (21600) is a multiple of the sum of its prime divisors (300).

It is not an unprimeable number, because it can be changed into a prime (8255963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 42681 + ... + 42873.

Almost surely, 2^8255961 is an apocalyptic number.

It is an amenable number.

8255961 is a deficient number, since it is larger than the sum of its proper divisors (5831931).

8255961 is a wasteful number, since it uses less digits than its factorization.

8255961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310 (or 300 counting only the distinct ones).

The product of its digits is 21600, while the sum is 36.

The square root of 8255961 is about 2873.3188128017. The cubic root of 8255961 is about 202.1106556414.

It can be divided in two parts, 8255 and 961, that added together give a square (9216 = 96²).

The spelling of 8255961 in words is "eight million, two hundred fifty-five thousand, nine hundred sixty-one".