550015000 has 80 divisors (see below), whose sum is σ = 1320608520. Its totient is φ = 214560000.

The previous prime is 550014977. The next prime is 550015003. The reversal of 550015000 is 510055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550015003) 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, 203659 + ... + 206341.

Almost surely, 2^550015000 is an apocalyptic number.

550015000 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 550015000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (660304260).

550015000 is an abundant number, since it is smaller than the sum of its proper divisors (770593520).

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

550015000 is a wasteful number, since it uses less digits than its factorization.

550015000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2750 (or 2731 counting only the distinct ones).

The product of its (nonzero) digits is 125, while the sum is 16.

The square root of 550015000 is about 23452.3985980112. The cubic root of 550015000 is about 819.3287189081.

Adding to 550015000 its reverse (510055), we get a palindrome (550525055).

The spelling of 550015000 in words is "five hundred fifty million, fifteen thousand".