55332440032 has 24 divisors (see below), whose sum is σ = 110248225416. Its totient is φ = 27332890752.

The previous prime is 55332439999. The next prime is 55332440039. The reversal of 55332440032 is 23004423355.

It is a super-2 number, since 2×55332440032² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55332439976 and 55332440003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55332440039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10413843 + ... + 10419154.

It is an arithmetic number, because the mean of its divisors is an integer number (4593676059).

Almost surely, 2^55332440032 is an apocalyptic number.

It is an amenable number.

55332440032 is a deficient number, since it is larger than the sum of its proper divisors (54915785384).

55332440032 is a wasteful number, since it uses less digits than its factorization.

55332440032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20833090 (or 20833082 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 31.

Adding to 55332440032 its reverse (23004423355), we get a palindrome (78336863387).

The spelling of 55332440032 in words is "fifty-five billion, three hundred thirty-two million, four hundred forty thousand, thirty-two".