55028992 has 36 divisors (see below), whose sum is σ = 112420000. Its totient is φ = 26869248.

The previous prime is 55028969. The next prime is 55028993. The reversal of 55028992 is 29982055.

It is a super-3 number, since 3×55028992³ (a number of 24 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55028993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8509 + ... + 13507.

Almost surely, 2^55028992 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 55028992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56210000).

55028992 is an abundant number, since it is smaller than the sum of its proper divisors (57391008).

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

55028992 is an equidigital number, since it uses as much as digits as its factorization.

55028992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5058 (or 5044 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 40.

The square root of 55028992 is about 7418.1528698187. The cubic root of 55028992 is about 380.3620556704.

The spelling of 55028992 in words is "fifty-five million, twenty-eight thousand, nine hundred ninety-two".