2231085555 has 12 divisors (see below), whose sum is σ = 3867215040. Its totient is φ = 1189912272.

The previous prime is 2231085547. The next prime is 2231085587. The reversal of 2231085555 is 5555801322.

2231085555 is a `hidden beast` number, since 2 + 23 + 1 + 0 + 85 + 555 = 666.

It is not a de Polignac number, because 2231085555 - 2³ = 2231085547 is a prime.

It is a super-3 number, since 3×2231085555³ (a number of 29 digits) contains 333 as substring.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 24789795 + ... + 24789884.

It is an arithmetic number, because the mean of its divisors is an integer number (322267920).

Almost surely, 2^2231085555 is an apocalyptic number.

2231085555 is a deficient number, since it is larger than the sum of its proper divisors (1636129485).

2231085555 is a wasteful number, since it uses less digits than its factorization.

2231085555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49579690 (or 49579687 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 36.

The square root of 2231085555 is about 47234.3683666883. The cubic root of 2231085555 is about 1306.6885176204.

Adding to 2231085555 its reverse (5555801322), we get a palindrome (7786886877).

The spelling of 2231085555 in words is "two billion, two hundred thirty-one million, eighty-five thousand, five hundred fifty-five".