55819796480 has 384 divisors, whose sum is σ = 165407718600. Its totient is φ = 17968398336.

The previous prime is 55819796467. The next prime is 55819796567. The reversal of 55819796480 is 8469791855.

It can be written as a sum of positive squares in 4 ways, for example, as 55529979904 + 289816576 = 235648^2 + 17024^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 136478516 + ... + 136478924.

Almost surely, 2^55819796480 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 55819796480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82703859300).

55819796480 is an abundant number, since it is smaller than the sum of its proper divisors (109587922120).

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

55819796480 is an equidigital number, since it uses as much as digits as its factorization.

55819796480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475 (or 440 counting only the distinct ones).

The product of its (nonzero) digits is 21772800, while the sum is 62.

The spelling of 55819796480 in words is "fifty-five billion, eight hundred nineteen million, seven hundred ninety-six thousand, four hundred eighty".