550143252 has 72 divisors (see below), whose sum is σ = 1518098400. Its totient is φ = 173723616.

The previous prime is 550143211. The next prime is 550143301. The reversal of 550143252 is 252341055.

It is a happy number.

It is a super-2 number, since 2×550143252² = 605315195442271008, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3574 + ... + 33362.

It is an arithmetic number, because the mean of its divisors is an integer number (21084700).

Almost surely, 2^550143252 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 550143252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (759049200).

550143252 is an abundant number, since it is smaller than the sum of its proper divisors (967955148).

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

550143252 is a wasteful number, since it uses less digits than its factorization.

550143252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29827 (or 29813 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 550143252 is about 23455.1327431759. The cubic root of 550143252 is about 819.3923974020.

The spelling of 550143252 in words is "five hundred fifty million, one hundred forty-three thousand, two hundred fifty-two".