505009950 has 48 divisors (see below), whose sum is σ = 1254372096. Its totient is φ = 134460000.

The previous prime is 505009937. The next prime is 505009951. The reversal of 505009950 is 59900505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505009951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 110409 + ... + 114891.

It is an arithmetic number, because the mean of its divisors is an integer number (26132752).

Almost surely, 2^505009950 is an apocalyptic number.

505009950 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

505009950 is an abundant number, since it is smaller than the sum of its proper divisors (749362146).

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

505009950 is a wasteful number, since it uses less digits than its factorization.

505009950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5249 (or 5244 counting only the distinct ones).

The product of its (nonzero) digits is 10125, while the sum is 33.

The square root of 505009950 is about 22472.4264377481. The cubic root of 505009950 is about 796.3426542154.

The spelling of 505009950 in words is "five hundred five million, nine thousand, nine hundred fifty".