It is a happy number.
2261085552 is a `hidden beast` number, since 2 + 26 + 1 + 0 + 85 + 552 = 666.
It is a congruent number.
It is an unprimeable number.
Almost surely, 22261085552 is an apocalyptic number.
2261085552 is a gapful number since it is divisible by the number (22) formed by its first and last digit.
It is an amenable number.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2261085552 is a wasteful number, since it uses less digits than its factorization.
2261085552 is an odious number, because the sum of its binary digits is odd.
The square root of 2261085552 is about 47550.8733042833. The cubic root of 2261085552 is about 1312.5191995015.
The spelling of 2261085552 in words is "two billion, two hundred sixty-one million, eighty-five thousand, five hundred fifty-two".