10809057 has 36 divisors (see below), whose sum is σ = 17651760. Its totient is φ = 5865552.

The previous prime is 10809047. The next prime is 10809061. The reversal of 10809057 is 75090801.

It is not a de Polignac number, because 10809057 - 2¹⁴ = 10792673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10809047) 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 35 ways as a sum of consecutive naturals, for example, 77694 + ... + 77832.

Almost surely, 2^10809057 is an apocalyptic number.

It is an amenable number.

10809057 is a deficient number, since it is larger than the sum of its proper divisors (6842703).

10809057 is a wasteful number, since it uses less digits than its factorization.

10809057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202 (or 172 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 30.

The square root of 10809057 is about 3287.7130349226. The cubic root of 10809057 is about 221.1036620490.

Adding to 10809057 its reverse (75090801), we get a palindrome (85899858).

The spelling of 10809057 in words is "ten million, eight hundred nine thousand, fifty-seven".