55488628 has 18 divisors (see below), whose sum is σ = 104676054. Its totient is φ = 25585344.

The previous prime is 55488611. The next prime is 55488637. The reversal of 55488628 is 82688455.

55488628 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 3 ways, for example, as 28323684 + 27164944 = 5322^2 + 5212^2 .

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 53200 + ... + 54232.

Almost surely, 2^55488628 is an apocalyptic number.

It is an amenable number.

55488628 is a deficient number, since it is larger than the sum of its proper divisors (49187426).

55488628 is a wasteful number, since it uses less digits than its factorization.

55488628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2083 (or 1048 counting only the distinct ones).

The product of its digits is 614400, while the sum is 46.

The square root of 55488628 is about 7449.0689351086. The cubic root of 55488628 is about 381.4181267609.

The spelling of 55488628 in words is "fifty-five million, four hundred eighty-eight thousand, six hundred twenty-eight".