505055755 has 4 divisors (see below), whose sum is σ = 606066912. Its totient is φ = 404044600.

The previous prime is 505055743. The next prime is 505055791. The reversal of 505055755 is 557550505.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 505055755 - 2⁵ = 505055723 is a prime.

It is a Duffinian 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 3 ways as a sum of consecutive naturals, for example, 50505571 + ... + 50505580.

It is an arithmetic number, because the mean of its divisors is an integer number (151516728).

Almost surely, 2^505055755 is an apocalyptic number.

505055755 is a deficient number, since it is larger than the sum of its proper divisors (101011157).

505055755 is a wasteful number, since it uses less digits than its factorization.

505055755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101011156.

The product of its (nonzero) digits is 109375, while the sum is 37.

The square root of 505055755 is about 22473.4455524737. The cubic root of 505055755 is about 796.3667298946.

The spelling of 505055755 in words is "five hundred five million, fifty-five thousand, seven hundred fifty-five".