55583028 has 36 divisors (see below), whose sum is σ = 144302340. Its totient is φ = 18026496.

The previous prime is 55582963. The next prime is 55583029. The reversal of 55583028 is 82038555.

55583028 is a `hidden beast` number, since 55 + 583 + 0 + 28 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 24980004 + 30603024 = 4998^2 + 5532^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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 = 55582983 and 55583001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55583029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19533 + ... + 22196.

Almost surely, 2^55583028 is an apocalyptic number.

It is an amenable number.

55583028 is an abundant number, since it is smaller than the sum of its proper divisors (88719312).

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

55583028 is a wasteful number, since it uses less digits than its factorization.

55583028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41776 (or 41771 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

The square root of 55583028 is about 7455.4026048229. The cubic root of 55583028 is about 381.6343000167.

The spelling of 55583028 in words is "fifty-five million, five hundred eighty-three thousand, twenty-eight".