550190000 has 100 divisors (see below), whose sum is σ = 1368986784. Its totient is φ = 213984000.

The previous prime is 550189999. The next prime is 550190009. The reversal of 550190000 is 91055.

It is a tau number, because it is divible by the number of its divisors (100).

It is a super-2 number, since 2×550190000² = 605418072200000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (550190009) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 369257 + ... + 370743.

Almost surely, 2^550190000 is an apocalyptic number.

550190000 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 550190000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (684493392).

550190000 is an abundant number, since it is smaller than the sum of its proper divisors (818796784).

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

550190000 is a wasteful number, since it uses less digits than its factorization.

550190000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1552 (or 1531 counting only the distinct ones).

The product of its (nonzero) digits is 225, while the sum is 20.

The square root of 550190000 is about 23456.1292629453. The cubic root of 550190000 is about 819.4156058243.

The spelling of 550190000 in words is "five hundred fifty million, one hundred ninety thousand".