55344554540 has 96 divisors (see below), whose sum is σ = 132395074560. Its totient is φ = 19236729600.

The previous prime is 55344554539. The next prime is 55344554543. The reversal of 55344554540 is 4545544355.

It is a super-2 number, since 2×55344554540² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 55344554491 and 55344554500.

It is not an unprimeable number, because it can be changed into a prime (55344554543) 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 31 ways as a sum of consecutive naturals, for example, 9504830 + ... + 9510650.

It is an arithmetic number, because the mean of its divisors is an integer number (1379115360).

Almost surely, 2^55344554540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55344554540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66197537280).

55344554540 is an abundant number, since it is smaller than the sum of its proper divisors (77050520020).

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

55344554540 is a wasteful number, since it uses less digits than its factorization.

55344554540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7743 (or 7741 counting only the distinct ones).

The product of its (nonzero) digits is 2400000, while the sum is 44.

The spelling of 55344554540 in words is "fifty-five billion, three hundred forty-four million, five hundred fifty-four thousand, five hundred forty".