505921760 has 24 divisors (see below), whose sum is σ = 1195240536. Its totient is φ = 202368640.

The previous prime is 505921747. The next prime is 505921763. The reversal of 505921760 is 67129505.

It is a self number, because there is not a number n which added to its sum of digits gives 505921760.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505921763) by changing a digit.

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, 1580846 + ... + 1581165.

It is an arithmetic number, because the mean of its divisors is an integer number (49801689).

Almost surely, 2^505921760 is an apocalyptic number.

It is an amenable number.

505921760 is an abundant number, since it is smaller than the sum of its proper divisors (689318776).

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

505921760 is a wasteful number, since it uses less digits than its factorization.

505921760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3162026 (or 3162018 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 35.

The square root of 505921760 is about 22492.7045950459. The cubic root of 505921760 is about 796.8216392515.

The spelling of 505921760 in words is "five hundred five million, nine hundred twenty-one thousand, seven hundred sixty".