55756044 has 18 divisors (see below), whose sum is σ = 140938980. Its totient is φ = 18585336.

The previous prime is 55756037. The next prime is 55756049. The reversal of 55756044 is 44065755.

It is a happy number.

55756044 is a `hidden beast` number, since 5 + 57 + 560 + 44 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1548779 = 55756044 / (5 + 5 + 7 + 5 + 6 + 0 + 4 + 4).

It is not an unprimeable number, because it can be changed into a prime (55756049) 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 5 ways as a sum of consecutive naturals, for example, 774354 + ... + 774425.

Almost surely, 2^55756044 is an apocalyptic number.

It is an amenable number.

55756044 is an abundant number, since it is smaller than the sum of its proper divisors (85182936).

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

55756044 is a wasteful number, since it uses less digits than its factorization.

55756044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1548789 (or 1548784 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 36.

The square root of 55756044 is about 7466.9969867411. The cubic root of 55756044 is about 382.0298670945.

The spelling of 55756044 in words is "fifty-five million, seven hundred fifty-six thousand, forty-four".