809130555 has 48 divisors (see below), whose sum is σ = 1506009024. Its totient is φ = 400404480.

The previous prime is 809130529. The next prime is 809130557. The reversal of 809130555 is 555031908.

It is a happy number.

809130555 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 809130555 - 2⁹ = 809130043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (809130557) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 46867 + ... + 61763.

It is an arithmetic number, because the mean of its divisors is an integer number (31375188).

Almost surely, 2^809130555 is an apocalyptic number.

809130555 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

809130555 is a deficient number, since it is larger than the sum of its proper divisors (696878469).

809130555 is a wasteful number, since it uses less digits than its factorization.

809130555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14996 (or 14993 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The square root of 809130555 is about 28445.2202487518. The cubic root of 809130555 is about 931.8361054956.

The spelling of 809130555 in words is "eight hundred nine million, one hundred thirty thousand, five hundred fifty-five".