553300666 has 16 divisors (see below), whose sum is σ = 880678656. Its totient is φ = 259811776.

The previous prime is 553300661. The next prime is 553300669. The reversal of 553300666 is 666003355.

It is a happy number.

It is a super-2 number, since 2×553300666² = 612283253992087112, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (553300661) 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, 1546 + ... + 33301.

It is an arithmetic number, because the mean of its divisors is an integer number (55042416).

Almost surely, 2^553300666 is an apocalyptic number.

553300666 is a deficient number, since it is larger than the sum of its proper divisors (327377990).

553300666 is a wasteful number, since it uses less digits than its factorization.

553300666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35333.

The product of its (nonzero) digits is 48600, while the sum is 34.

The square root of 553300666 is about 23522.3439733374. The cubic root of 553300666 is about 820.9569761290.

The spelling of 553300666 in words is "five hundred fifty-three million, three hundred thousand, six hundred sixty-six".