52531443220 has 12 divisors (see below), whose sum is σ = 110316030804. Its totient is φ = 21012577280.

The previous prime is 52531443191. The next prime is 52531443221. The reversal of 52531443220 is 2234413525.

It can be written as a sum of positive squares in 2 ways, for example, as 19087080336 + 33444362884 = 138156^2 + 182878^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52531443221) 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 3 ways as a sum of consecutive naturals, for example, 1313286061 + ... + 1313286100.

It is an arithmetic number, because the mean of its divisors is an integer number (9193002567).

Almost surely, 2^52531443220 is an apocalyptic number.

It is an amenable number.

52531443220 is an abundant number, since it is smaller than the sum of its proper divisors (57784587584).

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

52531443220 is a wasteful number, since it uses less digits than its factorization.

52531443220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2626572170 (or 2626572168 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 52531443220 its reverse (2234413525), we get a palindrome (54765856745).

The spelling of 52531443220 in words is "fifty-two billion, five hundred thirty-one million, four hundred forty-three thousand, two hundred twenty".