55224301440 has 1536 divisors, whose sum is σ = 245337776640. Its totient is φ = 10404495360.

The previous prime is 55224301427. The next prime is 55224301463. The reversal of 55224301440 is 4410342255.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 55224301398 and 55224301407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 756497244 + ... + 756497316.

It is an arithmetic number, because the mean of its divisors is an integer number (159725115).

Almost surely, 2^55224301440 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 55224301440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122668888320).

55224301440 is an abundant number, since it is smaller than the sum of its proper divisors (190113475200).

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

55224301440 is a wasteful number, since it uses less digits than its factorization.

55224301440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180 (or 161 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 55224301440 its reverse (4410342255), we get a palindrome (59634643695).

The spelling of 55224301440 in words is "fifty-five billion, two hundred twenty-four million, three hundred one thousand, four hundred forty".