505885798 has 32 divisors (see below), whose sum is σ = 867791232. Its totient is φ = 219105600.

The previous prime is 505885777. The next prime is 505885799. The reversal of 505885798 is 897588505.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505885799) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32265 + ... + 45307.

It is an arithmetic number, because the mean of its divisors is an integer number (27118476).

Almost surely, 2^505885798 is an apocalyptic number.

505885798 is a deficient number, since it is larger than the sum of its proper divisors (361905434).

505885798 is a wasteful number, since it uses less digits than its factorization.

505885798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13140.

The product of its (nonzero) digits is 4032000, while the sum is 55.

The square root of 505885798 is about 22491.9051660814. The cubic root of 505885798 is about 796.8027588757.

The spelling of 505885798 in words is "five hundred five million, eight hundred eighty-five thousand, seven hundred ninety-eight".