550005005551 has 8 divisors (see below), whose sum is σ = 554546304000. Its totient is φ = 545481482040.

The previous prime is 550005005533. The next prime is 550005005573. The reversal of 550005005551 is 155500500055.

550005005551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 550005005551 - 2⁵ = 550005005519 is a prime.

It is a super-2 number, since 2×550005005551² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550005005521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4381591 + ... + 4505368.

It is an arithmetic number, because the mean of its divisors is an integer number (69318288000).

Almost surely, 2^550005005551 is an apocalyptic number.

550005005551 is a deficient number, since it is larger than the sum of its proper divisors (4541298449).

550005005551 is a wasteful number, since it uses less digits than its factorization.

550005005551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8887469.

The product of its (nonzero) digits is 15625, while the sum is 31.

The spelling of 550005005551 in words is "five hundred fifty billion, five million, five thousand, five hundred fifty-one".