505054999977 has 16 divisors (see below), whose sum is σ = 734940451008. Its totient is φ = 305962690880.

The previous prime is 505054999907. The next prime is 505055000017. The reversal of 505054999977 is 779999450505.

It is not a de Polignac number, because 505054999977 - 2¹¹ = 505054997929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (505054999907) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3203058 + ... + 3357035.

It is an arithmetic number, because the mean of its divisors is an integer number (45933778188).

Almost surely, 2^505054999977 is an apocalyptic number.

It is an amenable number.

505054999977 is a deficient number, since it is larger than the sum of its proper divisors (229885451031).

505054999977 is a wasteful number, since it uses less digits than its factorization.

505054999977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6562440.

The product of its (nonzero) digits is 160744500, while the sum is 69.

The spelling of 505054999977 in words is "five hundred five billion, fifty-four million, nine hundred ninety-nine thousand, nine hundred seventy-seven".