505775055 has 16 divisors (see below), whose sum is σ = 811580544. Its totient is φ = 268966560.

The previous prime is 505775033. The next prime is 505775063. The reversal of 505775055 is 550577505.

It is not a de Polignac number, because 505775055 - 2⁸ = 505774799 is a prime.

It is a congruent number.

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, 43381 + ... + 53790.

It is an arithmetic number, because the mean of its divisors is an integer number (50723784).

Almost surely, 2^505775055 is an apocalyptic number.

505775055 is a deficient number, since it is larger than the sum of its proper divisors (305805489).

505775055 is a wasteful number, since it uses less digits than its factorization.

505775055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97526.

The product of its (nonzero) digits is 153125, while the sum is 39.

The square root of 505775055 is about 22489.4431900837. The cubic root of 505775055 is about 796.7446121768.

The spelling of 505775055 in words is "five hundred five million, seven hundred seventy-five thousand, fifty-five".