505861144 has 16 divisors (see below), whose sum is σ = 948728520. Its totient is φ = 252866880.

The previous prime is 505861091. The next prime is 505861201. The reversal of 505861144 is 441168505.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 56307 + ... + 64669.

Almost surely, 2^505861144 is an apocalyptic number.

It is an amenable number.

505861144 is a deficient number, since it is larger than the sum of its proper divisors (442867376).

505861144 is a wasteful number, since it uses less digits than its factorization.

505861144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15930 (or 15926 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 505861144 is about 22491.3570955601. The cubic root of 505861144 is about 796.7898147854.

The spelling of 505861144 in words is "five hundred five million, eight hundred sixty-one thousand, one hundred forty-four".