550220393 has 8 divisors (see below), whose sum is σ = 577212480. Its totient is φ = 523762960.

The previous prime is 550220381. The next prime is 550220423. The reversal of 550220393 is 393022055.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 550220393 - 2²⁰ = 549171817 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550220323) 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, 131555 + ... + 135672.

It is an arithmetic number, because the mean of its divisors is an integer number (72151560).

Almost surely, 2^550220393 is an apocalyptic number.

It is an amenable number.

550220393 is a deficient number, since it is larger than the sum of its proper divisors (26992087).

550220393 is a wasteful number, since it uses less digits than its factorization.

550220393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267327.

The product of its (nonzero) digits is 8100, while the sum is 29.

The square root of 550220393 is about 23456.7771230406. Note that the first 3 decimals coincide. The cubic root of 550220393 is about 819.4306939696.

The spelling of 550220393 in words is "five hundred fifty million, two hundred twenty thousand, three hundred ninety-three".