553400066 has 8 divisors (see below), whose sum is σ = 830806524. Its totient is φ = 276464560.

The previous prime is 553400063. The next prime is 553400119. The reversal of 553400066 is 660004355.

It can be written as a sum of positive squares in 2 ways, for example, as 550887841 + 2512225 = 23471^2 + 1585^2 .

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

It is not an unprimeable number, because it can be changed into a prime (553400063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114785 + ... + 119508.

Almost surely, 2^553400066 is an apocalyptic number.

553400066 is a deficient number, since it is larger than the sum of its proper divisors (277406458).

553400066 is a wasteful number, since it uses less digits than its factorization.

553400066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235476.

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

The square root of 553400066 is about 23524.4567631221. The cubic root of 553400066 is about 821.0061345958.

The spelling of 553400066 in words is "five hundred fifty-three million, four hundred thousand, sixty-six".