55552211551185 has 32 divisors (see below), whose sum is σ = 94433582384640. Its totient is φ = 27833055844608.

The previous prime is 55552211551181. The next prime is 55552211551189. The reversal of 55552211551185 is 58115511225555.

It is an interprime number because it is at equal distance from previous prime (55552211551181) and next prime (55552211551189).

It is not a de Polignac number, because 55552211551185 - 2² = 55552211551181 is a prime.

It is a super-2 number, since 2×55552211551185² (a number of 28 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55552211551181) 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 31 ways as a sum of consecutive naturals, for example, 1725743817 + ... + 1725776006.

It is an arithmetic number, because the mean of its divisors is an integer number (2951049449520).

Almost surely, 2^{55552211551185} is an apocalyptic number.

It is an amenable number.

55552211551185 is a deficient number, since it is larger than the sum of its proper divisors (38881370833455).

55552211551185 is a wasteful number, since it uses less digits than its factorization.

55552211551185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3451519897.

The product of its digits is 2500000, while the sum is 51.

The spelling of 55552211551185 in words is "fifty-five trillion, five hundred fifty-two billion, two hundred eleven million, five hundred fifty-one thousand, one hundred eighty-five".