505612071 has 16 divisors (see below), whose sum is σ = 774885600. Its totient is φ = 325450944.

The previous prime is 505612061. The next prime is 505612109. The reversal of 505612071 is 170216505.

It is not a de Polignac number, because 505612071 - 2⁹ = 505611559 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505612001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 322086 + ... + 323651.

It is an arithmetic number, because the mean of its divisors is an integer number (48430350).

Almost surely, 2^505612071 is an apocalyptic number.

505612071 is a deficient number, since it is larger than the sum of its proper divisors (269273529).

505612071 is a wasteful number, since it uses less digits than its factorization.

505612071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645775 (or 645769 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

The square root of 505612071 is about 22485.8193313030. The cubic root of 505612071 is about 796.6590203881.

Adding to 505612071 its reverse (170216505), we get a palindrome (675828576).

The spelling of 505612071 in words is "five hundred five million, six hundred twelve thousand, seventy-one".