55756089 has 27 divisors (see below), whose sum is σ = 85652229. Its totient is φ = 34945560.

The previous prime is 55756081. The next prime is 55756093. The reversal of 55756089 is 98065755.

The square root of 55756089 is 7467.

It is a perfect power (a square), and thus also a powerful number.

55756089 is a `hidden beast` number, since 5 + 5 + 7 + 560 + 89 = 666.

55756089 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55756089 - 2³ = 55756081 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55756081) 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 26 ways as a sum of consecutive naturals, for example, 425554 + ... + 425684.

Almost surely, 2^55756089 is an apocalyptic number.

55756089 is the 7467-th square number.

55756089 is the 3734-th centered octagonal number.

It is an amenable number.

55756089 is a deficient number, since it is larger than the sum of its proper divisors (29896140).

55756089 is a wasteful number, since it uses less digits than its factorization.

55756089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306 (or 153 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 45.

The cubic root of 55756089 is about 382.0299698716.

It can be divided in two parts, 5575 and 6089, that added together give a square (11664 = 108²).

The spelling of 55756089 in words is "fifty-five million, seven hundred fifty-six thousand, eighty-nine".