550511250 has 80 divisors (see below), whose sum is σ = 1395378336. Its totient is φ = 144720000.

The previous prime is 550511243. The next prime is 550511251. The reversal of 550511250 is 52115055.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 550511250.

It is not an unprimeable number, because it can be changed into a prime (550511251) 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, 272745 + ... + 274755.

Almost surely, 2^550511250 is an apocalyptic number.

550511250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 550511250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (697689168).

550511250 is an abundant number, since it is smaller than the sum of its proper divisors (844867086).

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

550511250 is a wasteful number, since it uses less digits than its factorization.

550511250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2109 (or 2094 counting only the distinct ones).

The product of its (nonzero) digits is 1250, while the sum is 24.

The square root of 550511250 is about 23462.9761539324. The cubic root of 550511250 is about 819.5750574357.

The spelling of 550511250 in words is "five hundred fifty million, five hundred eleven thousand, two hundred fifty".