55530252 has 48 divisors (see below), whose sum is σ = 146344800. Its totient is φ = 18204480.

The previous prime is 55530227. The next prime is 55530253. The reversal of 55530252 is 25203555.

55530252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (55530253) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2374 + ... + 10802.

It is an arithmetic number, because the mean of its divisors is an integer number (3048850).

Almost surely, 2^55530252 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 55530252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73172400).

55530252 is an abundant number, since it is smaller than the sum of its proper divisors (90814548).

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

55530252 is a wasteful number, since it uses less digits than its factorization.

55530252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8503 (or 8495 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 27.

The square root of 55530252 is about 7451.8623175687. The cubic root of 55530252 is about 381.5134747062.

The spelling of 55530252 in words is "fifty-five million, five hundred thirty thousand, two hundred fifty-two".