505019745 has 32 divisors (see below), whose sum is σ = 909196800. Its totient is φ = 265928832.

The previous prime is 505019737. The next prime is 505019761. The reversal of 505019745 is 547910505.

It is not a de Polignac number, because 505019745 - 2³ = 505019737 is a prime.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 13012 + ... + 34341.

It is an arithmetic number, because the mean of its divisors is an integer number (28412400).

Almost surely, 2^505019745 is an apocalyptic number.

It is an amenable number.

505019745 is a deficient number, since it is larger than the sum of its proper divisors (404177055).

505019745 is a wasteful number, since it uses less digits than its factorization.

505019745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47446 (or 47440 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 36.

The square root of 505019745 is about 22472.6443704340. The cubic root of 505019745 is about 796.3478027119.

The spelling of 505019745 in words is "five hundred five million, nineteen thousand, seven hundred forty-five".