550455040 has 144 divisors (see below), whose sum is σ = 1377639648. Its totient is φ = 210567168.

The previous prime is 550455029. The next prime is 550455071. The reversal of 550455040 is 40554055.

It is a super-2 number, since 2×550455040² = 606001502122803200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4017852 + ... + 4017988.

It is an arithmetic number, because the mean of its divisors is an integer number (9566942).

Almost surely, 2^550455040 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 550455040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (688819824).

550455040 is an abundant number, since it is smaller than the sum of its proper divisors (827184608).

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

550455040 is a wasteful number, since it uses less digits than its factorization.

550455040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274 (or 260 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 28.

The square root of 550455040 is about 23461.7782787239. The cubic root of 550455040 is about 819.5471622250.

The spelling of 550455040 in words is "five hundred fifty million, four hundred fifty-five thousand, forty".