52440213331 has 16 divisors (see below), whose sum is σ = 59142820608. Its totient is φ = 46077228000.

The previous prime is 52440213323. The next prime is 52440213347. The reversal of 52440213331 is 13331204425.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 52440213331 - 2³ = 52440213323 is a prime.

It is a super-2 number, since 2×52440213331² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52440213331.

It is not an unprimeable number, because it can be changed into a prime (52440213391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 365185 + ... + 488098.

It is an arithmetic number, because the mean of its divisors is an integer number (3696426288).

Almost surely, 2^52440213331 is an apocalyptic number.

52440213331 is a deficient number, since it is larger than the sum of its proper divisors (6702607277).

52440213331 is a wasteful number, since it uses less digits than its factorization.

52440213331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 853482.

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 52440213331 its reverse (13331204425), we get a palindrome (65771417756).

The spelling of 52440213331 in words is "fifty-two billion, four hundred forty million, two hundred thirteen thousand, three hundred thirty-one".