55788402240 has 448 divisors, whose sum is σ = 211533638400. Its totient is φ = 13790380032.

The previous prime is 55788402221. The next prime is 55788402269. The reversal of 55788402240 is 4220488755.

It is a super-2 number, since 2×55788402240² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9838126 + ... + 9843794.

It is an arithmetic number, because the mean of its divisors is an integer number (472173300).

Almost surely, 2^55788402240 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 55788402240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105766819200).

55788402240 is an abundant number, since it is smaller than the sum of its proper divisors (155745236160).

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

55788402240 is a wasteful number, since it uses less digits than its factorization.

55788402240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5779 (or 5763 counting only the distinct ones).

The product of its (nonzero) digits is 716800, while the sum is 45.

The spelling of 55788402240 in words is "fifty-five billion, seven hundred eighty-eight million, four hundred two thousand, two hundred forty".