55019416321 has 16 divisors (see below), whose sum is σ = 56322000000. Its totient is φ = 53736034176.

The previous prime is 55019416297. The next prime is 55019416343. The reversal of 55019416321 is 12361491055.

55019416321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 55019416321 - 2⁵ = 55019416289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55019410321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2450655 + ... + 2473003.

It is an arithmetic number, because the mean of its divisors is an integer number (3520125000).

Almost surely, 2^55019416321 is an apocalyptic number.

It is an amenable number.

55019416321 is a deficient number, since it is larger than the sum of its proper divisors (1302583679).

55019416321 is a wasteful number, since it uses less digits than its factorization.

55019416321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22776.

The product of its (nonzero) digits is 32400, while the sum is 37.

The spelling of 55019416321 in words is "fifty-five billion, nineteen million, four hundred sixteen thousand, three hundred twenty-one".