55572 has 24 divisors (see below), whose sum is σ = 141792. Its totient is φ = 16800.

The previous prime is 55547. The next prime is 55579. The reversal of 55572 is 27555.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55579) by changing a digit.

55572 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79 + ... + 342.

It is an arithmetic number, because the mean of its divisors is an integer number (5908).

2⁵⁵⁵⁷² is an apocalyptic number.

It is an amenable number.

55572 is an abundant number, since it is smaller than the sum of its proper divisors (86220).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70896).

55572 is a wasteful number, since it uses less digits than its factorization.

55572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439 (or 437 counting only the distinct ones).

The product of its digits is 1750, while the sum is 24.

The square root of 55572 is about 235.7371417490. The cubic root of 55572 is about 38.1609058850.

The spelling of 55572 in words is "fifty-five thousand, five hundred seventy-two".