550197900 has 288 divisors, whose sum is σ = 2071534080. Its totient is φ = 122653440.

The previous prime is 550197887. The next prime is 550197913. The reversal of 550197900 is 9791055.

It is a happy number.

550197900 is a `hidden beast` number, since 550 + 19 + 7 + 90 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (550197887) and next prime (550197913).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 812362 + ... + 813038.

Almost surely, 2^550197900 is an apocalyptic number.

550197900 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 550197900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1035767040).

550197900 is an abundant number, since it is smaller than the sum of its proper divisors (1521336180).

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

550197900 is a wasteful number, since it uses less digits than its factorization.

550197900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750 (or 737 counting only the distinct ones).

The product of its (nonzero) digits is 14175, while the sum is 36.

The square root of 550197900 is about 23456.2976618221. The cubic root of 550197900 is about 819.4195277133.

The spelling of 550197900 in words is "five hundred fifty million, one hundred ninety-seven thousand, nine hundred".