55050555055551 has 8 divisors (see below), whose sum is σ = 80073534626304. Its totient is φ = 33363972760920.

The previous prime is 55050555055549. The next prime is 55050555055591. The reversal of 55050555055551 is 15555055505055.

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

It is not a de Polignac number, because 55050555055551 - 2¹ = 55050555055549 is a prime.

It is a super-2 number, since 2×55050555055551² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55050555055494 and 55050555055503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55050555055591) 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, 834099318991 + ... + 834099319056.

It is an arithmetic number, because the mean of its divisors is an integer number (10009191828288).

Almost surely, 2^{55050555055551} is an apocalyptic number.

55050555055551 is a deficient number, since it is larger than the sum of its proper divisors (25022979570753).

55050555055551 is a wasteful number, since it uses less digits than its factorization.

55050555055551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1668198638061.

The product of its (nonzero) digits is 9765625, while the sum is 51.

The spelling of 55050555055551 in words is "fifty-five trillion, fifty billion, five hundred fifty-five million, fifty-five thousand, five hundred fifty-one".