56085109 has 12 divisors (see below), whose sum is σ = 59288236. Its totient is φ = 53044992.

The previous prime is 56085067. The next prime is 56085119. The reversal of 56085109 is 90158065.

It can be written as a sum of positive squares in 2 ways, for example, as 44182609 + 11902500 = 6647^2 + 3450^2 .

It is not a de Polignac number, because 56085109 - 2¹⁷ = 55954037 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56085119) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50767 + ... + 51859.

Almost surely, 2^56085109 is an apocalyptic number.

It is an amenable number.

56085109 is a deficient number, since it is larger than the sum of its proper divisors (3203127).

56085109 is a wasteful number, since it uses less digits than its factorization.

56085109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1236 (or 1213 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 34.

The square root of 56085109 is about 7488.9991988249. Note that the first 3 decimals coincide. The cubic root of 56085109 is about 382.7799570914.

The spelling of 56085109 in words is "fifty-six million, eighty-five thousand, one hundred nine".