8255491 has 4 divisors (see below), whose sum is σ = 8261512. Its totient is φ = 8249472.

The previous prime is 8255479. The next prime is 8255501. The reversal of 8255491 is 1945528.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 8255491 - 2⁷ = 8255363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8255411) 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 3 ways as a sum of consecutive naturals, for example, 160 + ... + 4066.

It is an arithmetic number, because the mean of its divisors is an integer number (2065378).

Almost surely, 2^8255491 is an apocalyptic number.

8255491 is a deficient number, since it is larger than the sum of its proper divisors (6021).

8255491 is a wasteful number, since it uses less digits than its factorization.

8255491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6020.

The product of its digits is 14400, while the sum is 34.

The square root of 8255491 is about 2873.2370246814. The cubic root of 8255491 is about 202.1068202788.

The spelling of 8255491 in words is "eight million, two hundred fifty-five thousand, four hundred ninety-one".