550332500 has 120 divisors (see below), whose sum is σ = 1332023616. Its totient is φ = 197824000.

The previous prime is 550332493. The next prime is 550332509. The reversal of 550332500 is 5233055.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550332509) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 977219 + ... + 977781.

Almost surely, 2^550332500 is an apocalyptic number.

550332500 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 550332500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (666011808).

550332500 is an abundant number, since it is smaller than the sum of its proper divisors (781691116).

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

550332500 is a wasteful number, since it uses less digits than its factorization.

550332500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627 (or 610 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 23.

The square root of 550332500 is about 23459.1666518655. The cubic root of 550332500 is about 819.4863429905.

Adding to 550332500 its reverse (5233055), we get a palindrome (555565555).

The spelling of 550332500 in words is "five hundred fifty million, three hundred thirty-two thousand, five hundred".