55241382840 has 384 divisors, whose sum is σ = 197080153920. Its totient is φ = 12347596800.

The previous prime is 55241382829. The next prime is 55241382863. The reversal of 55241382840 is 4828314255.

It is a super-2 number, since 2×55241382840² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 55241382792 and 55241382801.

It is a congruent number.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 83572110 + ... + 83572770.

Almost surely, 2^55241382840 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 55241382840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98540076960).

55241382840 is an abundant number, since it is smaller than the sum of its proper divisors (141838771080).

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

55241382840 is a wasteful number, since it uses less digits than its factorization.

55241382840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 983 (or 972 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 42.

The spelling of 55241382840 in words is "fifty-five billion, two hundred forty-one million, three hundred eighty-two thousand, eight hundred forty".