165553033 has 8 divisors (see below), whose sum is σ = 167525696. Its totient is φ = 163587600.

The previous prime is 165553013. The next prime is 165553049. The reversal of 165553033 is 330355561.

It is a happy number.

165553033 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 165553033 - 2⁵ = 165553001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 165552986 and 165553004.

It is not an unprimeable number, because it can be changed into a prime (165553013) 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, 54238 + ... + 57208.

It is an arithmetic number, because the mean of its divisors is an integer number (20940712).

Almost surely, 2^165553033 is an apocalyptic number.

It is an amenable number.

165553033 is a deficient number, since it is larger than the sum of its proper divisors (1972663).

165553033 is a wasteful number, since it uses less digits than its factorization.

165553033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3615.

The product of its (nonzero) digits is 20250, while the sum is 31.

The square root of 165553033 is about 12866.7413512513. The cubic root of 165553033 is about 549.0927555307.

The spelling of 165553033 in words is "one hundred sixty-five million, five hundred fifty-three thousand, thirty-three".