505055544 has 48 divisors (see below), whose sum is σ = 1468787400. Its totient is φ = 144301248.

The previous prime is 505055543. The next prime is 505055557. The reversal of 505055544 is 445550505.

It is a super-2 number, since 2×505055544² = 510162205050271872, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505055543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 213559 + ... + 215910.

Almost surely, 2^505055544 is an apocalyptic number.

It is an amenable number.

505055544 is an abundant number, since it is smaller than the sum of its proper divisors (963731856).

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

505055544 is a wasteful number, since it uses less digits than its factorization.

505055544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429492 (or 429481 counting only the distinct ones).

The product of its (nonzero) digits is 50000, while the sum is 33.

The square root of 505055544 is about 22473.4408580440. The cubic root of 505055544 is about 796.3666189937.

The spelling of 505055544 in words is "five hundred five million, fifty-five thousand, five hundred forty-four".