505045655 has 8 divisors (see below), whose sum is σ = 606531984. Its totient is φ = 403718400.

The previous prime is 505045637. The next prime is 505045679. The reversal of 505045655 is 556540505.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 505045655 - 2⁸ = 505045399 is a prime.

It is a super-2 number, since 2×505045655² = 510142227268758050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32666 + ... + 45575.

It is an arithmetic number, because the mean of its divisors is an integer number (75816498).

Almost surely, 2^505045655 is an apocalyptic number.

505045655 is a deficient number, since it is larger than the sum of its proper divisors (101486329).

505045655 is a wasteful number, since it uses less digits than its factorization.

505045655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79537.

The product of its (nonzero) digits is 75000, while the sum is 35.

The square root of 505045655 is about 22473.2208417040. The cubic root of 505045655 is about 796.3614213337.

It can be divided in two parts, 5050 and 45655, that added together give a palindrome (50705).

The spelling of 505045655 in words is "five hundred five million, forty-five thousand, six hundred fifty-five".