55512272555 has 16 divisors (see below), whose sum is σ = 70041499200. Its totient is φ = 42175512960.

The previous prime is 55512272551. The next prime is 55512272581. The reversal of 55512272555 is 55527221555.

It is not a de Polignac number, because 55512272555 - 2² = 55512272551 is a prime.

It is a super-2 number, since 2×55512272555² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55512272551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3129215 + ... + 3146904.

It is an arithmetic number, because the mean of its divisors is an integer number (4377593700).

Almost surely, 2^55512272555 is an apocalyptic number.

55512272555 is a deficient number, since it is larger than the sum of its proper divisors (14529226645).

55512272555 is a wasteful number, since it uses less digits than its factorization.

55512272555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6276214.

The product of its digits is 875000, while the sum is 44.

The spelling of 55512272555 in words is "fifty-five billion, five hundred twelve million, two hundred seventy-two thousand, five hundred fifty-five".