550509120 has 504 divisors, whose sum is σ = 2276636544. Its totient is φ = 121669632.

The previous prime is 550509119. The next prime is 550509121. The reversal of 550509120 is 21905055.

550509120 is a `hidden beast` number, since 550 + 5 + 0 + 91 + 20 = 666.

It is an interprime number because it is at equal distance from previous prime (550509119) and next prime (550509121).

It is a tau number, because it is divible by the number of its divisors (504).

It is not an unprimeable number, because it can be changed into a prime (550509121) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 6632599 + ... + 6632681.

It is an arithmetic number, because the mean of its divisors is an integer number (4517136).

Almost surely, 2^550509120 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 550509120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1138318272).

550509120 is an abundant number, since it is smaller than the sum of its proper divisors (1726127424).

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

550509120 is a wasteful number, since it uses less digits than its factorization.

550509120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167 (or 147 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 27.

The square root of 550509120 is about 23462.9307632273. The cubic root of 550509120 is about 819.5740004200.

The spelling of 550509120 in words is "five hundred fifty million, five hundred nine thousand, one hundred twenty".