810056 has 16 divisors (see below), whose sum is σ = 1635900. Its totient is φ = 373824.

The previous prime is 810053. The next prime is 810059. The reversal of 810056 is 650018.

It is an interprime number because it is at equal distance from previous prime (810053) and next prime (810059).

It can be written as a sum of positive squares in 2 ways, for example, as 792100 + 17956 = 890^2 + 134^2 .

It is not an unprimeable number, because it can be changed into a prime (810053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3791 + ... + 3998.

2⁸¹⁰⁰⁵⁶ is an apocalyptic number.

It is an amenable number.

810056 is an abundant number, since it is smaller than the sum of its proper divisors (825844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

810056 is a wasteful number, since it uses less digits than its factorization.

810056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7808 (or 7804 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 810056 is about 900.0311105734. The cubic root of 810056 is about 93.2191233392.

The spelling of 810056 in words is "eight hundred ten thousand, fifty-six".