550409200 has 60 divisors (see below), whose sum is σ = 1442584008. Its totient is φ = 200147200.

The previous prime is 550409191. The next prime is 550409201. The reversal of 550409200 is 2904055.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550409201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58147 + ... + 66946.

Almost surely, 2^550409200 is an apocalyptic number.

550409200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

550409200 is an abundant number, since it is smaller than the sum of its proper divisors (892174808).

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

550409200 is a wasteful number, since it uses less digits than its factorization.

550409200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125122 (or 125111 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 550409200 is about 23460.8013503375. The cubic root of 550409200 is about 819.5244119050.

The spelling of 550409200 in words is "five hundred fifty million, four hundred nine thousand, two hundred".