811882055 has 4 divisors (see below), whose sum is σ = 974258472. Its totient is φ = 649505640.

The previous prime is 811881953. The next prime is 811882079. The reversal of 811882055 is 550288118.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 550288118 = 2 ⋅275144059.

It is not a de Polignac number, because 811882055 - 2¹⁸ = 811619911 is a prime.

It is a Duffinian number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 81188201 + ... + 81188210.

It is an arithmetic number, because the mean of its divisors is an integer number (243564618).

Almost surely, 2^811882055 is an apocalyptic number.

811882055 is a deficient number, since it is larger than the sum of its proper divisors (162376417).

811882055 is a wasteful number, since it uses less digits than its factorization.

811882055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162376416.

The product of its (nonzero) digits is 25600, while the sum is 38.

The square root of 811882055 is about 28493.5440933556. The cubic root of 811882055 is about 932.8911664776.

The spelling of 811882055 in words is "eight hundred eleven million, eight hundred eighty-two thousand, fifty-five".