505283747 has 4 divisors (see below), whose sum is σ = 506810616. Its totient is φ = 503756880.

The previous prime is 505283731. The next prime is 505283749. The reversal of 505283747 is 747382505.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 505283747 - 2⁴ = 505283731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505283749) 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 3 ways as a sum of consecutive naturals, for example, 762938 + ... + 763599.

It is an arithmetic number, because the mean of its divisors is an integer number (126702654).

Almost surely, 2^505283747 is an apocalyptic number.

505283747 is a deficient number, since it is larger than the sum of its proper divisors (1526869).

505283747 is a wasteful number, since it uses less digits than its factorization.

505283747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1526868.

The product of its (nonzero) digits is 235200, while the sum is 41.

The square root of 505283747 is about 22478.5174555619. The cubic root of 505283747 is about 796.4865436827.

The spelling of 505283747 in words is "five hundred five million, two hundred eighty-three thousand, seven hundred forty-seven".