55241140401440 has 192 divisors, whose sum is σ = 152974663672320. Its totient is φ = 18455408271360.

The previous prime is 55241140401437. The next prime is 55241140401449. The reversal of 55241140401440 is 4410404114255.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 55241140401440.

It is not an unprimeable number, because it can be changed into a prime (55241140401449) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37061306 + ... + 38523014.

It is an arithmetic number, because the mean of its divisors is an integer number (796743039960).

Almost surely, 2^{55241140401440} 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 55241140401440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76487331836160).

55241140401440 is an abundant number, since it is smaller than the sum of its proper divisors (97733523270880).

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

55241140401440 is a wasteful number, since it uses less digits than its factorization.

55241140401440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1462595 (or 1462587 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 35.

Adding to 55241140401440 its reverse (4410404114255), we get a palindrome (59651544515695).

The spelling of 55241140401440 in words is "fifty-five trillion, two hundred forty-one billion, one hundred forty million, four hundred one thousand, four hundred forty".