55154220055 has 8 divisors (see below), whose sum is σ = 72201888144. Its totient is φ = 40112160000.

The previous prime is 55154220007. The next prime is 55154220067. The reversal of 55154220055 is 55002245155.

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

It is not a de Polignac number, because 55154220055 - 2¹³ = 55154211863 is a prime.

It is a super-3 number, since 3×55154220055³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55154220055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 501401946 + ... + 501402055.

It is an arithmetic number, because the mean of its divisors is an integer number (9025236018).

Almost surely, 2^55154220055 is an apocalyptic number.

55154220055 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55154220055 is a deficient number, since it is larger than the sum of its proper divisors (17047668089).

55154220055 is a wasteful number, since it uses less digits than its factorization.

55154220055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002804017.

The product of its (nonzero) digits is 50000, while the sum is 34.

The spelling of 55154220055 in words is "fifty-five billion, one hundred fifty-four million, two hundred twenty thousand, fifty-five".