55273890816 has 297 divisors, whose sum is σ = 167030674083. Its totient is φ = 17604587520.

The previous prime is 55273890811. The next prime is 55273890871. The reversal of 55273890816 is 61809837255.

The square root of 55273890816 is 235104.

It is a perfect power (a square), and thus also a powerful number.

55273890816 is a `hidden beast` number, since 5 + 527 + 38 + 9 + 0 + 81 + 6 = 666.

It is not an unprimeable number, because it can be changed into a prime (55273890811) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 699669465 + ... + 699669543.

Almost surely, 2^55273890816 is an apocalyptic number.

55273890816 is the 235104-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55273890816

55273890816 is an abundant number, since it is smaller than the sum of its proper divisors (111756783267).

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

55273890816 is an equidigital number, since it uses as much as digits as its factorization.

55273890816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246 (or 115 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 54.

The spelling of 55273890816 in words is "fifty-five billion, two hundred seventy-three million, eight hundred ninety thousand, eight hundred sixteen".