55033132 has 48 divisors (see below), whose sum is σ = 120814848. Its totient is φ = 21309120.

The previous prime is 55033129. The next prime is 55033141. The reversal of 55033132 is 23133055.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60223 + ... + 61129.

It is an arithmetic number, because the mean of its divisors is an integer number (2516976).

Almost surely, 2^55033132 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 55033132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60407424).

55033132 is an abundant number, since it is smaller than the sum of its proper divisors (65781716).

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

55033132 is a wasteful number, since it uses less digits than its factorization.

55033132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126 (or 1124 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 22.

The square root of 55033132 is about 7418.4319097772. The cubic root of 55033132 is about 380.3715940329.

Adding to 55033132 its reverse (23133055), we get a palindrome (78166187).

The spelling of 55033132 in words is "fifty-five million, thirty-three thousand, one hundred thirty-two".