550187500 has 42 divisors (see below), whose sum is σ = 1203656468. Its totient is φ = 220050000.

The previous prime is 550187497. The next prime is 550187509. The reversal of 550187500 is 5781055.

It is not an unprimeable number, because it can be changed into a prime (550187509) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 58099 + ... + 66901.

Almost surely, 2^550187500 is an apocalyptic number.

550187500 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 550187500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (601828234).

550187500 is an abundant number, since it is smaller than the sum of its proper divisors (653468968).

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

550187500 is an frugal number, since it uses more digits than its factorization.

550187500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8837 (or 8810 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 31.

The square root of 550187500 is about 23456.0759719097. The cubic root of 550187500 is about 819.4143647124.

The spelling of 550187500 in words is "five hundred fifty million, one hundred eighty-seven thousand, five hundred".