55530056 has 8 divisors (see below), whose sum is σ = 104118870. Its totient is φ = 27765024.

The previous prime is 55530053. The next prime is 55530089. The reversal of 55530056 is 65003555.

It can be written as a sum of positive squares in only one way, i.e., 55502500 + 27556 = 7450^2 + 166^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (55530053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3470621 + ... + 3470636.

Almost surely, 2^55530056 is an apocalyptic number.

It is an amenable number.

55530056 is a deficient number, since it is larger than the sum of its proper divisors (48588814).

55530056 is a wasteful number, since it uses less digits than its factorization.

55530056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6941263 (or 6941259 counting only the distinct ones).

The product of its (nonzero) digits is 11250, while the sum is 29.

The square root of 55530056 is about 7451.8491664821. The cubic root of 55530056 is about 381.5130258414.

The spelling of 55530056 in words is "fifty-five million, five hundred thirty thousand, fifty-six".