5500555550399 has 32 divisors (see below), whose sum is σ = 6956373043200. Its totient is φ = 4233357914112.

The previous prime is 5500555550353. The next prime is 5500555550423. The reversal of 5500555550399 is 9930555550055.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5500555550399 is a prime.

It is a super-2 number, since 2×5500555550399² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5500555550299) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3247874 + ... + 4642175.

It is an arithmetic number, because the mean of its divisors is an integer number (217386657600).

Almost surely, 2^{5500555550399} is an apocalyptic number.

5500555550399 is a deficient number, since it is larger than the sum of its proper divisors (1455817492801).

5500555550399 is a wasteful number, since it uses less digits than its factorization.

5500555550399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7890279.

The product of its (nonzero) digits is 18984375, while the sum is 56.

The spelling of 5500555550399 in words is "five trillion, five hundred billion, five hundred fifty-five million, five hundred fifty thousand, three hundred ninety-nine".