505000504990 has 16 divisors (see below), whose sum is σ = 922568087952. Its totient is φ = 198985273344.

The previous prime is 505000504979. The next prime is 505000504991. The reversal of 505000504990 is 99405000505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505000504991) by changing a digit.

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, 376865379 + ... + 376866718.

It is an arithmetic number, because the mean of its divisors is an integer number (57660505497).

Almost surely, 2^505000504990 is an apocalyptic number.

505000504990 is a deficient number, since it is larger than the sum of its proper divisors (417567582962).

505000504990 is a wasteful number, since it uses less digits than its factorization.

505000504990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753732171.

The product of its (nonzero) digits is 40500, while the sum is 37.

The spelling of 505000504990 in words is "five hundred five billion, five hundred four thousand, nine hundred ninety".