2261085558 has 8 divisors (see below), whose sum is σ = 4522171128. Its totient is φ = 753695184.

The previous prime is 2261085529. The next prime is 2261085569. The reversal of 2261085558 is 8555801622.

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

2261085558 is an admirable number.

It is a super-3 number, since 3×2261085558³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188423791 + ... + 188423802.

It is an arithmetic number, because the mean of its divisors is an integer number (565271391).

Almost surely, 2^2261085558 is an apocalyptic number.

2261085558 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2261085558 is a wasteful number, since it uses less digits than its factorization.

2261085558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376847598.

The product of its (nonzero) digits is 192000, while the sum is 42.

The square root of 2261085558 is about 47550.8733673736. The cubic root of 2261085558 is about 1312.5192006624.

The spelling of 2261085558 in words is "two billion, two hundred sixty-one million, eighty-five thousand, five hundred fifty-eight".