553264666 has 8 divisors (see below), whose sum is σ = 832249044. Its totient is φ = 275848320.

The previous prime is 553264633. The next prime is 553264669. The reversal of 553264666 is 666462355.

It can be written as a sum of positive squares in 2 ways, for example, as 553237441 + 27225 = 23521^2 + 165^2 .

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

It is a super-2 number, since 2×553264666² = 612203581288183112, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (553264669) 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, 391125 + ... + 392536.

Almost surely, 2^553264666 is an apocalyptic number.

553264666 is a deficient number, since it is larger than the sum of its proper divisors (278984378).

553264666 is a wasteful number, since it uses less digits than its factorization.

553264666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784016.

The product of its digits is 777600, while the sum is 43.

The square root of 553264666 is about 23521.5787310291. The cubic root of 553264666 is about 820.9391708055.

The spelling of 553264666 in words is "five hundred fifty-three million, two hundred sixty-four thousand, six hundred sixty-six".