505305252 has 72 divisors (see below), whose sum is σ = 1300178880. Its totient is φ = 165447360.

The previous prime is 505305191. The next prime is 505305259. The reversal of 505305252 is 252503505.

It is not an unprimeable number, because it can be changed into a prime (505305259) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 513553 + ... + 514535.

It is an arithmetic number, because the mean of its divisors is an integer number (18058040).

Almost surely, 2^505305252 is an apocalyptic number.

It is an amenable number.

505305252 is an abundant number, since it is smaller than the sum of its proper divisors (794873628).

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

505305252 is a wasteful number, since it uses less digits than its factorization.

505305252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1233 (or 1228 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 27.

The square root of 505305252 is about 22478.9957960759. The cubic root of 505305252 is about 796.4978430765.

Adding to 505305252 its reverse (252503505), we get a palindrome (757808757).

The spelling of 505305252 in words is "five hundred five million, three hundred five thousand, two hundred fifty-two".