505007071 has 4 divisors (see below), whose sum is σ = 508693392. Its totient is φ = 501320752.

The previous prime is 505007051. The next prime is 505007147. The reversal of 505007071 is 170700505.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 170700505 = 5 ⋅34140101.

It is a cyclic number.

It is not a de Polignac number, because 505007071 - 2⁵ = 505007039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505007011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1842955 + ... + 1843228.

It is an arithmetic number, because the mean of its divisors is an integer number (127173348).

Almost surely, 2^505007071 is an apocalyptic number.

505007071 is a deficient number, since it is larger than the sum of its proper divisors (3686321).

505007071 is a wasteful number, since it uses less digits than its factorization.

505007071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3686320.

The product of its (nonzero) digits is 1225, while the sum is 25.

The square root of 505007071 is about 22472.3623813786. The cubic root of 505007071 is about 796.3411409285.

Adding to 505007071 its reverse (170700505), we get a palindrome (675707576).

The spelling of 505007071 in words is "five hundred five million, seven thousand, seventy-one".