55216297248 has 384 divisors, whose sum is σ = 178111954944. Its totient is φ = 14636160000.

The previous prime is 55216297243. The next prime is 55216297259. The reversal of 55216297248 is 84279261255.

It is a self number, because there is not a number n which added to its sum of digits gives 55216297248.

It is not an unprimeable number, because it can be changed into a prime (55216297243) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 166816443 + ... + 166816773.

It is an arithmetic number, because the mean of its divisors is an integer number (463833216).

Almost surely, 2^55216297248 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 55216297248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89055977472).

55216297248 is an abundant number, since it is smaller than the sum of its proper divisors (122895657696).

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

55216297248 is a wasteful number, since it uses less digits than its factorization.

55216297248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668 (or 660 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 51.

The spelling of 55216297248 in words is "fifty-five billion, two hundred sixteen million, two hundred ninety-seven thousand, two hundred forty-eight".