55759220 has 36 divisors (see below), whose sum is σ = 128712612. Its totient is φ = 20275200.

The previous prime is 55759181. The next prime is 55759229. The reversal of 55759220 is 2295755.

55759220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 15335056 + 40424164 = 3916^2 + 6358^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55759229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9101 + ... + 13940.

Almost surely, 2^55759220 is an apocalyptic number.

It is an amenable number.

55759220 is an abundant number, since it is smaller than the sum of its proper divisors (72953392).

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

55759220 is a wasteful number, since it uses less digits than its factorization.

55759220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23072 (or 23059 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 35.

The square root of 55759220 is about 7467.2096528757. The cubic root of 55759220 is about 382.0371207405.

The spelling of 55759220 in words is "fifty-five million, seven hundred fifty-nine thousand, two hundred twenty".