505565652 has 96 divisors (see below), whose sum is σ = 1296304128. Its totient is φ = 152722944.

The previous prime is 505565651. The next prime is 505565677. The reversal of 505565652 is 256565505.

It is a self number, because there is not a number n which added to its sum of digits gives 505565652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505565651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 642003 + ... + 642789.

It is an arithmetic number, because the mean of its divisors is an integer number (13503168).

Almost surely, 2^505565652 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 505565652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (648152064).

505565652 is an abundant number, since it is smaller than the sum of its proper divisors (790738476).

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

505565652 is a wasteful number, since it uses less digits than its factorization.

505565652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 925 (or 923 counting only the distinct ones).

The product of its (nonzero) digits is 225000, while the sum is 39.

The square root of 505565652 is about 22484.7871237421. The cubic root of 505565652 is about 796.6346398739.

It can be divided in two parts, 5055 and 65652, that added together give a palindrome (70707).

The spelling of 505565652 in words is "five hundred five million, five hundred sixty-five thousand, six hundred fifty-two".