66055333 has 4 divisors (see below), whose sum is σ = 68927328. Its totient is φ = 63183340.

The previous prime is 66055303. The next prime is 66055337. The reversal of 66055333 is 33355066.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 33355066 = 2 ⋅16677533.

It is a cyclic number.

It is not a de Polignac number, because 66055333 - 2²⁵ = 32500901 is a prime.

It is a super-3 number, since 3×66055333³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66055295 and 66055304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66055337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1435963 + ... + 1436008.

It is an arithmetic number, because the mean of its divisors is an integer number (17231832).

Almost surely, 2^66055333 is an apocalyptic number.

It is an amenable number.

66055333 is a deficient number, since it is larger than the sum of its proper divisors (2871995).

66055333 is a wasteful number, since it uses less digits than its factorization.

66055333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2871994.

The product of its (nonzero) digits is 24300, while the sum is 31.

The square root of 66055333 is about 8127.4432018932. The cubic root of 66055333 is about 404.2369068461.

The spelling of 66055333 in words is "sixty-six million, fifty-five thousand, three hundred thirty-three".