55200828 has 24 divisors (see below), whose sum is σ = 134402688. Its totient is φ = 17600176.

The previous prime is 55200823. The next prime is 55200829. The reversal of 55200828 is 82800255.

55200828 is a modest number, since divided by 828 gives 552 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 55200795 and 55200804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55200823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99726 + ... + 100277.

It is an arithmetic number, because the mean of its divisors is an integer number (5600112).

Almost surely, 2^55200828 is an apocalyptic number.

It is an amenable number.

55200828 is an abundant number, since it is smaller than the sum of its proper divisors (79201860).

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

55200828 is a wasteful number, since it uses less digits than its factorization.

55200828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200033 (or 200031 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 30.

The square root of 55200828 is about 7429.7259707206. The cubic root of 55200828 is about 380.7575561614.

The spelling of 55200828 in words is "fifty-five million, two hundred thousand, eight hundred twenty-eight".