805053091 has 2 divisors, whose sum is σ = 805053092. Its totient is φ = 805053090.

The previous prime is 805053017. The next prime is 805053101. The reversal of 805053091 is 190350508.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 805053091 - 2¹¹ = 805051043 is a prime.

It is a super-2 number, since 2×805053091² = 1296220958657308562, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (805053191) 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 as a sum of consecutive naturals, namely, 402526545 + 402526546.

It is an arithmetic number, because the mean of its divisors is an integer number (402526546).

Almost surely, 2^805053091 is an apocalyptic number.

805053091 is a deficient number, since it is larger than the sum of its proper divisors (1).

805053091 is an equidigital number, since it uses as much as digits as its factorization.

805053091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 805053091 is about 28373.4575087352. The cubic root of 805053091 is about 930.2681968233.

The spelling of 805053091 in words is "eight hundred five million, fifty-three thousand, ninety-one".