505283513 has 4 divisors (see below), whose sum is σ = 577466880. Its totient is φ = 433100148.

The previous prime is 505283509. The next prime is 505283521. The reversal of 505283513 is 315382505.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 505283513 - 2² = 505283509 is a prime.

It is a super-2 number, since 2×505283513² = 510622857019242338, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 505283513.

It is not an unprimeable number, because it can be changed into a prime (505283533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36091673 + ... + 36091686.

It is an arithmetic number, because the mean of its divisors is an integer number (144366720).

Almost surely, 2^505283513 is an apocalyptic number.

It is an amenable number.

505283513 is a deficient number, since it is larger than the sum of its proper divisors (72183367).

505283513 is an equidigital number, since it uses as much as digits as its factorization.

505283513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72183366.

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 505283513 is about 22478.5122505917. The cubic root of 505283513 is about 796.4864207300.

It can be divided in two parts, 5052 and 83513, that multiplied together give a triangular number (421907676 = T₂₉₀₄₈).

The spelling of 505283513 in words is "five hundred five million, two hundred eighty-three thousand, five hundred thirteen".