55325400240320 has 224 divisors, whose sum is σ = 155797432473600. Its totient is φ = 18309742424064.

The previous prime is 55325400240311. The next prime is 55325400240337. The reversal of 55325400240320 is 2304200452355.

It is a tau number, because it is divible by the number of its divisors (224).

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

It is an unprimeable number.

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, 248230691 + ... + 248453469.

Almost surely, 2^{55325400240320} 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 55325400240320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77898716236800).

55325400240320 is an abundant number, since it is smaller than the sum of its proper divisors (100472032233280).

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

55325400240320 is a wasteful number, since it uses less digits than its factorization.

55325400240320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226655 (or 226645 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 35.

Adding to 55325400240320 its reverse (2304200452355), we get a palindrome (57629600692675).

The spelling of 55325400240320 in words is "fifty-five trillion, three hundred twenty-five billion, four hundred million, two hundred forty thousand, three hundred twenty".