505545050 has 24 divisors (see below), whose sum is σ = 948645756. Its totient is φ = 200426240.

The previous prime is 505545013. The next prime is 505545121. The reversal of 505545050 is 50545505.

It can be written as a sum of positive squares in 6 ways, for example, as 2036329 + 503508721 = 1427^2 + 22439^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39089 + ... + 50388.

Almost surely, 2^505545050 is an apocalyptic number.

505545050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

505545050 is a deficient number, since it is larger than the sum of its proper divisors (443100706).

505545050 is a wasteful number, since it uses less digits than its factorization.

505545050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89602 (or 89597 counting only the distinct ones).

The product of its (nonzero) digits is 12500, while the sum is 29.

The square root of 505545050 is about 22484.3289870968. The cubic root of 505545050 is about 796.6238186681.

It can be divided in two parts, 5055 and 45050, that added together give a palindrome (50105).

The spelling of 505545050 in words is "five hundred five million, five hundred forty-five thousand, fifty".