505005071 has 4 divisors (see below), whose sum is σ = 506828472. Its totient is φ = 503181672.

The previous prime is 505005049. The next prime is 505005091. The reversal of 505005071 is 170500505.

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 505005071 - 2²² = 500810767 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 (505005001) 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, 911285 + ... + 911838.

It is an arithmetic number, because the mean of its divisors is an integer number (126707118).

Almost surely, 2^505005071 is an apocalyptic number.

505005071 is a deficient number, since it is larger than the sum of its proper divisors (1823401).

505005071 is a wasteful number, since it uses less digits than its factorization.

505005071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1823400.

The product of its (nonzero) digits is 875, while the sum is 23.

The square root of 505005071 is about 22472.3178822301. The cubic root of 505005071 is about 796.3400896664.

Adding to 505005071 its reverse (170500505), we get a palindrome (675505576).

The spelling of 505005071 in words is "five hundred five million, five thousand, seventy-one".