805155056 has 10 divisors (see below), whose sum is σ = 1559987952. Its totient is φ = 402577520.

The previous prime is 805155019. The next prime is 805155059. The reversal of 805155056 is 650551508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (805155059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25161080 + ... + 25161111.

Almost surely, 2^805155056 is an apocalyptic number.

It is an amenable number.

805155056 is a deficient number, since it is larger than the sum of its proper divisors (754832896).

805155056 is a wasteful number, since it uses less digits than its factorization.

805155056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50322199 (or 50322193 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 35.

The square root of 805155056 is about 28375.2542896095. The cubic root of 805155056 is about 930.3074699235.

The spelling of 805155056 in words is "eight hundred five million, one hundred fifty-five thousand, fifty-six".