505477774505 has 16 divisors (see below), whose sum is σ = 696543537600. Its totient is φ = 348271767360.

The previous prime is 505477774471. The next prime is 505477774511.

505477774505 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 505477774505 - 2⁶ = 505477774441 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 241854350 + ... + 241856439.

It is an arithmetic number, because the mean of its divisors is an integer number (43533971100).

Almost surely, 2^505477774505 is an apocalyptic number.

505477774505 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

505477774505 is a deficient number, since it is larger than the sum of its proper divisors (191065763095).

505477774505 is a wasteful number, since it uses less digits than its factorization.

505477774505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483710824.

The product of its (nonzero) digits is 24010000, while the sum is 56.

The spelling of 505477774505 in words is "five hundred five billion, four hundred seventy-seven million, seven hundred seventy-four thousand, five hundred five".