505213006220 has 48 divisors (see below), whose sum is σ = 1143101127168. Its totient is φ = 186451618560.

The previous prime is 505213006211. The next prime is 505213006223. The reversal of 505213006220 is 22600312505.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 505213006220.

It is not an unprimeable number, because it can be changed into a prime (505213006223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88622 + ... + 1009098.

It is an arithmetic number, because the mean of its divisors is an integer number (23814606816).

Almost surely, 2^505213006220 is an apocalyptic number.

It is an amenable number.

505213006220 is an abundant number, since it is smaller than the sum of its proper divisors (637888120948).

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

505213006220 is a wasteful number, since it uses less digits than its factorization.

505213006220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 922610 (or 922608 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 505213006220 its reverse (22600312505), we get a palindrome (527813318725).

The spelling of 505213006220 in words is "five hundred five billion, two hundred thirteen million, six thousand, two hundred twenty".