55360128 has 32 divisors (see below), whose sum is σ = 147051360. Its totient is φ = 18453248.

The previous prime is 55360121. The next prime is 55360133. The reversal of 55360128 is 82106355.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 55360095 and 55360104.

It is not an unprimeable number, because it can be changed into a prime (55360121) 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 3 ways as a sum of consecutive naturals, for example, 71700 + ... + 72467.

It is an arithmetic number, because the mean of its divisors is an integer number (4595355).

Almost surely, 2^55360128 is an apocalyptic number.

It is an amenable number.

55360128 is an abundant number, since it is smaller than the sum of its proper divisors (91691232).

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

55360128 is a wasteful number, since it uses less digits than its factorization.

55360128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144184 (or 144172 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 55360128 is about 7440.4386967436. The cubic root of 55360128 is about 381.1234711182.

The spelling of 55360128 in words is "fifty-five million, three hundred sixty thousand, one hundred twenty-eight".