55302642227840 has 256 divisors, whose sum is σ = 153122928768000. Its totient is φ = 18707307429888.

The previous prime is 55302642227839. The next prime is 55302642227881. The reversal of 55302642227840 is 4872224620355.

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, 184457576 + ... + 184757144.

It is an arithmetic number, because the mean of its divisors is an integer number (598136440500).

Almost surely, 2^{55302642227840} 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 55302642227840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76561464384000).

55302642227840 is an abundant number, since it is smaller than the sum of its proper divisors (97820286540160).

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

55302642227840 is a wasteful number, since it uses less digits than its factorization.

55302642227840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300147 (or 300135 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 50.

The spelling of 55302642227840 in words is "fifty-five trillion, three hundred two billion, six hundred forty-two million, two hundred twenty-seven thousand, eight hundred forty".