55444204452040 has 32 divisors (see below), whose sum is σ = 124749852975360. Its totient is φ = 22177611921600.

The previous prime is 55444204452023. The next prime is 55444204452089. The reversal of 55444204452040 is 4025440244455.

It is a super-2 number, since 2×55444204452040² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11776075 + ... + 15797605.

It is an arithmetic number, because the mean of its divisors is an integer number (3898432905480).

Almost surely, 2^{55444204452040} is an apocalyptic number.

It is an amenable number.

55444204452040 is an abundant number, since it is smaller than the sum of its proper divisors (69305648523320).

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

55444204452040 is a wasteful number, since it uses less digits than its factorization.

55444204452040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4366213 (or 4366209 counting only the distinct ones).

The product of its (nonzero) digits is 2048000, while the sum is 43.

Adding to 55444204452040 its reverse (4025440244455), we get a palindrome (59469644696495).

The spelling of 55444204452040 in words is "fifty-five trillion, four hundred forty-four billion, two hundred four million, four hundred fifty-two thousand, forty".