550451500 has 96 divisors (see below), whose sum is σ = 1314593280. Its totient is φ = 200448000.

The previous prime is 550451491. The next prime is 550451507. The reversal of 550451500 is 5154055.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (550451507) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 262456 + ... + 264544.

It is an arithmetic number, because the mean of its divisors is an integer number (13693680).

Almost surely, 2^550451500 is an apocalyptic number.

550451500 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 550451500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (657296640).

550451500 is an abundant number, since it is smaller than the sum of its proper divisors (764141780).

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

550451500 is a wasteful number, since it uses less digits than its factorization.

550451500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2156 (or 2144 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 25.

The square root of 550451500 is about 23461.7028367508. The cubic root of 550451500 is about 819.5454053735.

The spelling of 550451500 in words is "five hundred fifty million, four hundred fifty-one thousand, five hundred".