502544402020 has 48 divisors (see below), whose sum is σ = 1073528508528. Its totient is φ = 197559336960.

The previous prime is 502544401969. The next prime is 502544402023. The reversal of 502544402020 is 20204445205.

It can be written as a sum of positive squares in 8 ways, for example, as 61372134756 + 441172267264 = 247734^2 + 664208^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 502544402020.

It is not an unprimeable number, because it can be changed into a prime (502544402023) 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, 1315504 + ... + 1653976.

It is an arithmetic number, because the mean of its divisors is an integer number (22365177261).

Almost surely, 2^502544402020 is an apocalyptic number.

It is an amenable number.

502544402020 is an abundant number, since it is smaller than the sum of its proper divisors (570984106508).

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

502544402020 is a wasteful number, since it uses less digits than its factorization.

502544402020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339760 (or 339758 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 28.

Adding to 502544402020 its reverse (20204445205), we get a palindrome (522748847225).

The spelling of 502544402020 in words is "five hundred two billion, five hundred forty-four million, four hundred two thousand, twenty".