55028659968 has 216 divisors, whose sum is σ = 161970157440. Its totient is φ = 17962813440.

The previous prime is 55028659963. The next prime is 55028660021. The reversal of 55028659968 is 86995682055.

55028659968 is a `hidden beast` number, since 5 + 502 + 8 + 65 + 9 + 9 + 68 = 666.

It is a super-2 number, since 2×55028659968² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55028659963) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44994205 + ... + 44995427.

It is an arithmetic number, because the mean of its divisors is an integer number (749861840).

Almost surely, 2^55028659968 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 55028659968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80985078720).

55028659968 is an abundant number, since it is smaller than the sum of its proper divisors (106941497472).

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

55028659968 is a wasteful number, since it uses less digits than its factorization.

55028659968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1635 (or 1618 counting only the distinct ones).

The product of its (nonzero) digits is 46656000, while the sum is 63.

The spelling of 55028659968 in words is "fifty-five billion, twenty-eight million, six hundred fifty-nine thousand, nine hundred sixty-eight".