811532056 has 32 divisors (see below), whose sum is σ = 1589421600. Its totient is φ = 387959040.

The previous prime is 811532041. The next prime is 811532083. The reversal of 811532056 is 650235118.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 6916 + ... + 40876.

It is an arithmetic number, because the mean of its divisors is an integer number (49669425).

Almost surely, 2^811532056 is an apocalyptic number.

It is an amenable number.

811532056 is a deficient number, since it is larger than the sum of its proper divisors (777889544).

811532056 is a wasteful number, since it uses less digits than its factorization.

811532056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34099 (or 34095 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 811532056 is about 28487.4017067194. The cubic root of 811532056 is about 932.7570920335.

The spelling of 811532056 in words is "eight hundred eleven million, five hundred thirty-two thousand, fifty-six".