505080765 has 80 divisors (see below), whose sum is σ = 1042048128. Its totient is φ = 229267584.

The previous prime is 505080757. The next prime is 505080803. The reversal of 505080765 is 567080505.

505080765 is a `hidden beast` number, since 505 + 0 + 80 + 76 + 5 = 666.

It is not a de Polignac number, because 505080765 - 2³ = 505080757 is a prime.

It is a super-3 number, since 3×505080765³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 461559 + ... + 462651.

Almost surely, 2^505080765 is an apocalyptic number.

It is an amenable number.

505080765 is an abundant number, since it is smaller than the sum of its proper divisors (536967363).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

505080765 is a wasteful number, since it uses less digits than its factorization.

505080765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1280 (or 1271 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 36.

The square root of 505080765 is about 22474.0019800658. The cubic root of 505080765 is about 796.3798748480.

The spelling of 505080765 in words is "five hundred five million, eighty thousand, seven hundred sixty-five".