505512055 has 16 divisors (see below), whose sum is σ = 636672960. Its totient is φ = 384575488.

The previous prime is 505512041. The next prime is 505512097. The reversal of 505512055 is 550215505.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 505512055 - 2⁹ = 505511543 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 7191 + ... + 32599.

It is an arithmetic number, because the mean of its divisors is an integer number (39792060).

Almost surely, 2^505512055 is an apocalyptic number.

505512055 is a deficient number, since it is larger than the sum of its proper divisors (131160905).

505512055 is a wasteful number, since it uses less digits than its factorization.

505512055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25610.

The product of its (nonzero) digits is 6250, while the sum is 28.

The square root of 505512055 is about 22483.5952418647. The cubic root of 505512055 is about 796.6064874235.

The spelling of 505512055 in words is "five hundred five million, five hundred twelve thousand, fifty-five".