550257280 has 64 divisors (see below), whose sum is σ = 1318860000. Its totient is φ = 219534336.

The previous prime is 550257263. The next prime is 550257287. The reversal of 550257280 is 82752055.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (550257287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 318499 + ... + 320221.

Almost surely, 2^550257280 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 550257280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (659430000).

550257280 is an abundant number, since it is smaller than the sum of its proper divisors (768602720).

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

550257280 is a wasteful number, since it uses less digits than its factorization.

550257280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2241 (or 2229 counting only the distinct ones).

The product of its (nonzero) digits is 28000, while the sum is 34.

The square root of 550257280 is about 23457.5633858251. The cubic root of 550257280 is about 819.4490052166.

The spelling of 550257280 in words is "five hundred fifty million, two hundred fifty-seven thousand, two hundred eighty".