505550499956 has 24 divisors (see below), whose sum is σ = 890659546560. Its totient is φ = 251076672000.

The previous prime is 505550499913. The next prime is 505550499989. The reversal of 505550499956 is 659994055505.

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 7 ways as a sum of consecutive naturals, for example, 7194311 + ... + 7264241.

It is an arithmetic number, because the mean of its divisors is an integer number (37110814440).

Almost surely, 2^505550499956 is an apocalyptic number.

It is an amenable number.

505550499956 is a deficient number, since it is larger than the sum of its proper divisors (385109046604).

505550499956 is a wasteful number, since it uses less digits than its factorization.

505550499956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82055 (or 82053 counting only the distinct ones).

The product of its (nonzero) digits is 54675000, while the sum is 62.

The spelling of 505550499956 in words is "five hundred five billion, five hundred fifty million, four hundred ninety-nine thousand, nine hundred fifty-six".