55226660 has 12 divisors (see below), whose sum is σ = 115976028. Its totient is φ = 22090656.

The previous prime is 55226653. The next prime is 55226669. The reversal of 55226660 is 6662255.

It can be written as a sum of positive squares in 2 ways, for example, as 26152996 + 29073664 = 5114^2 + 5392^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (55226669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1380647 + ... + 1380686.

It is an arithmetic number, because the mean of its divisors is an integer number (9664669).

Almost surely, 2^55226660 is an apocalyptic number.

It is an amenable number.

55226660 is an abundant number, since it is smaller than the sum of its proper divisors (60749368).

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

55226660 is a wasteful number, since it uses less digits than its factorization.

55226660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2761342 (or 2761340 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 55226660 is about 7431.4641895121. The cubic root of 55226660 is about 380.8169405082.

The spelling of 55226660 in words is "fifty-five million, two hundred twenty-six thousand, six hundred sixty".