55002132 has 48 divisors (see below), whose sum is σ = 143236800. Its totient is φ = 18252000.

The previous prime is 55002083. The next prime is 55002137. The reversal of 55002132 is 23120055.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55002137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26094 + ... + 28122.

It is an arithmetic number, because the mean of its divisors is an integer number (2984100).

Almost surely, 2^55002132 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 55002132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71618400).

55002132 is an abundant number, since it is smaller than the sum of its proper divisors (88234668).

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

55002132 is a wasteful number, since it uses less digits than its factorization.

55002132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2293 (or 2285 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 55002132 is about 7416.3422251134. The cubic root of 55002132 is about 380.3001598882.

Adding to 55002132 its reverse (23120055), we get a palindrome (78122187).

The spelling of 55002132 in words is "fifty-five million, two thousand, one hundred thirty-two".