805583249 has 2 divisors, whose sum is σ = 805583250. Its totient is φ = 805583248.

The previous prime is 805583231. The next prime is 805583281. The reversal of 805583249 is 942385508.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 550606225 + 254977024 = 23465^2 + 15968^2 .

It is a cyclic number.

It is not a de Polignac number, because 805583249 - 2⁸ = 805582993 is a prime.

It is not a weakly prime, because it can be changed into another prime (805580249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402791624 + 402791625.

It is an arithmetic number, because the mean of its divisors is an integer number (402791625).

Almost surely, 2^805583249 is an apocalyptic number.

It is an amenable number.

805583249 is a deficient number, since it is larger than the sum of its proper divisors (1).

805583249 is an equidigital number, since it uses as much as digits as its factorization.

805583249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 345600, while the sum is 44.

The square root of 805583249 is about 28382.7984702002. The cubic root of 805583249 is about 930.4723576463.

The spelling of 805583249 in words is "eight hundred five million, five hundred eighty-three thousand, two hundred forty-nine".