55530552 has 128 divisors (see below), whose sum is σ = 175104000. Its totient is φ = 14256000.

The previous prime is 55530529. The next prime is 55530577. The reversal of 55530552 is 25503555.

55530552 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 31 ways as a sum of consecutive naturals, for example, 278949 + ... + 279147.

It is an arithmetic number, because the mean of its divisors is an integer number (1368000).

Almost surely, 2^55530552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55530552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87552000).

55530552 is an abundant number, since it is smaller than the sum of its proper divisors (119573448).

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

55530552 is a wasteful number, since it uses less digits than its factorization.

55530552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377 (or 373 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 30.

The square root of 55530552 is about 7451.8824467379. The cubic root of 55530552 is about 381.5141617422.

The spelling of 55530552 in words is "fifty-five million, five hundred thirty thousand, five hundred fifty-two".