505612072 has 16 divisors (see below), whose sum is σ = 1083454560. Its totient is φ = 216690864.

The previous prime is 505612061. The next prime is 505612109. The reversal of 505612072 is 270216505.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 505612072.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4514338 + ... + 4514449.

It is an arithmetic number, because the mean of its divisors is an integer number (67715910).

Almost surely, 2^505612072 is an apocalyptic number.

It is an amenable number.

505612072 is an abundant number, since it is smaller than the sum of its proper divisors (577842488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

505612072 is a wasteful number, since it uses less digits than its factorization.

505612072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9028800 (or 9028796 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 505612072 is about 22485.8193535392. The cubic root of 505612072 is about 796.6590209133.

Adding to 505612072 its reverse (270216505), we get a palindrome (775828577).

The spelling of 505612072 in words is "five hundred five million, six hundred twelve thousand, seventy-two".