2081509056 has 112 divisors (see below), whose sum is σ = 6675607680. Its totient is φ = 630754560.

The previous prime is 2081509013. The next prime is 2081509061. The reversal of 2081509056 is 6509051802.

It is a happy number.

2081509056 is a `hidden beast` number, since 20 + 81 + 509 + 0 + 56 = 666.

It is a super-2 number, since 2×2081509056² = 8665359900420022272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 2081509056.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 35746 + ... + 73761.

It is an arithmetic number, because the mean of its divisors is an integer number (59603640).

Almost surely, 2^2081509056 is an apocalyptic number.

It is an amenable number.

2081509056 is an abundant number, since it is smaller than the sum of its proper divisors (4594098624).

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

2081509056 is a wasteful number, since it uses less digits than its factorization.

2081509056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109539 (or 109523 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 2081509056 is about 45623.5581251616. The cubic root of 2081509056 is about 1276.8094888774.

The spelling of 2081509056 in words is "two billion, eighty-one million, five hundred nine thousand, fifty-six".