55531240533040 has 40 divisors (see below), whose sum is σ = 135905404466160. Its totient is φ = 21043417464576.

The previous prime is 55531240533031. The next prime is 55531240533053. The reversal of 55531240533040 is 4033504213555.

55531240533040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 55531240532984 and 55531240533002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18266853919 + ... + 18266856958.

It is an arithmetic number, because the mean of its divisors is an integer number (3397635111654).

Almost surely, 2^{55531240533040} is an apocalyptic number.

It is an amenable number.

55531240533040 is an abundant number, since it is smaller than the sum of its proper divisors (80374163933120).

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

55531240533040 is a wasteful number, since it uses less digits than its factorization.

55531240533040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36533710909 (or 36533710903 counting only the distinct ones).

The product of its (nonzero) digits is 540000, while the sum is 40.

Adding to 55531240533040 its reverse (4033504213555), we get a palindrome (59564744746595).

The spelling of 55531240533040 in words is "fifty-five trillion, five hundred thirty-one billion, two hundred forty million, five hundred thirty-three thousand, forty".