505555767 has 6 divisors (see below), whose sum is σ = 730247232. Its totient is φ = 337037172.

The previous prime is 505555759. The next prime is 505555807. The reversal of 505555767 is 767555505.

It is not a de Polignac number, because 505555767 - 2³ = 505555759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505555717) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28086423 + ... + 28086440.

It is an arithmetic number, because the mean of its divisors is an integer number (121707872).

Almost surely, 2^505555767 is an apocalyptic number.

505555767 is a deficient number, since it is larger than the sum of its proper divisors (224691465).

505555767 is a wasteful number, since it uses less digits than its factorization.

505555767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56172869 (or 56172866 counting only the distinct ones).

The product of its (nonzero) digits is 918750, while the sum is 45.

The square root of 505555767 is about 22484.5673073777. The cubic root of 505555767 is about 796.6294478118.

The spelling of 505555767 in words is "five hundred five million, five hundred fifty-five thousand, seven hundred sixty-seven".