550307520 has 392 divisors, whose sum is σ = 2252069664. Its totient is φ = 125411328.

The previous prime is 550307519. The next prime is 550307521. The reversal of 550307520 is 25703055.

It is an interprime number because it is at equal distance from previous prime (550307519) and next prime (550307521).

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

It is not an unprimeable number, because it can be changed into a prime (550307521) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 1632792 + ... + 1633128.

Almost surely, 2^550307520 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 550307520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1126034832).

550307520 is an abundant number, since it is smaller than the sum of its proper divisors (1701762144).

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

550307520 is an equidigital number, since it uses as much as digits as its factorization.

550307520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379 (or 354 counting only the distinct ones).

The product of its (nonzero) digits is 5250, while the sum is 27.

The square root of 550307520 is about 23458.6342313443. The cubic root of 550307520 is about 819.4739437721.

The spelling of 550307520 in words is "five hundred fifty million, three hundred seven thousand, five hundred twenty".