553220066 has 32 divisors (see below), whose sum is σ = 992960640. Its totient is φ = 226146816.

The previous prime is 553220053. The next prime is 553220071. The reversal of 553220066 is 660022355.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25490 + ... + 41906.

It is an arithmetic number, because the mean of its divisors is an integer number (31030020).

Almost surely, 2^553220066 is an apocalyptic number.

553220066 is a deficient number, since it is larger than the sum of its proper divisors (439740574).

553220066 is a wasteful number, since it uses less digits than its factorization.

553220066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16538.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 553220066 is about 23520.6306463071. The cubic root of 553220066 is about 820.9171109167.

The spelling of 553220066 in words is "five hundred fifty-three million, two hundred twenty thousand, sixty-six".