2081857252 has 12 divisors (see below), whose sum is σ = 3657766896. Its totient is φ = 1036781000.

The previous prime is 2081857231. The next prime is 2081857273. The reversal of 2081857252 is 2527581802.

It is an interprime number because it is at equal distance from previous prime (2081857231) and next prime (2081857273).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1035778 + ... + 1037785.

It is an arithmetic number, because the mean of its divisors is an integer number (304813908).

Almost surely, 2^2081857252 is an apocalyptic number.

It is an amenable number.

2081857252 is a deficient number, since it is larger than the sum of its proper divisors (1575909644).

2081857252 is a wasteful number, since it uses less digits than its factorization.

2081857252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2073818 (or 2073816 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 40.

The square root of 2081857252 is about 45627.3739327610. The cubic root of 2081857252 is about 1276.8806800433.

The spelling of 2081857252 in words is "two billion, eighty-one million, eight hundred fifty-seven thousand, two hundred fifty-two".