55727028 has 60 divisors (see below), whose sum is σ = 166499872. Its totient is φ = 15921360.

The previous prime is 55726997. The next prime is 55727029. The reversal of 55727028 is 82072755.

55727028 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 55726983 and 55727001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55727029) 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 19 ways as a sum of consecutive naturals, for example, 10018 + ... + 14553.

Almost surely, 2^55727028 is an apocalyptic number.

It is an amenable number.

55727028 is an abundant number, since it is smaller than the sum of its proper divisors (110772844).

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

55727028 is a wasteful number, since it uses less digits than its factorization.

55727028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24594 (or 24583 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 36.

The square root of 55727028 is about 7465.0537841331. The cubic root of 55727028 is about 381.9635848807.

The spelling of 55727028 in words is "fifty-five million, seven hundred twenty-seven thousand, twenty-eight".