506115555 has 16 divisors (see below), whose sum is σ = 883401984. Its totient is φ = 245389280.

The previous prime is 506115553. The next prime is 506115581. The reversal of 506115555 is 555511605.

It is not a de Polignac number, because 506115555 - 2¹ = 506115553 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (506115553) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1533519 + ... + 1533848.

It is an arithmetic number, because the mean of its divisors is an integer number (55212624).

Almost surely, 2^506115555 is an apocalyptic number.

506115555 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

506115555 is a deficient number, since it is larger than the sum of its proper divisors (377286429).

506115555 is a wasteful number, since it uses less digits than its factorization.

506115555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3067386.

The product of its (nonzero) digits is 18750, while the sum is 33.

The square root of 506115555 is about 22497.0121349481. The cubic root of 506115555 is about 796.9233679830.

The spelling of 506115555 in words is "five hundred six million, one hundred fifteen thousand, five hundred fifty-five".