168555053 has 4 divisors (see below), whose sum is σ = 170449020. Its totient is φ = 166661088.

The previous prime is 168555041. The next prime is 168555077. The reversal of 168555053 is 350555861.

168555053 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 71690089 + 96864964 = 8467^2 + 9842^2 .

It is a cyclic number.

It is not a de Polignac number, because 168555053 - 2²⁴ = 151777837 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 168554998 and 168555016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168555353) 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, 946850 + ... + 947027.

It is an arithmetic number, because the mean of its divisors is an integer number (42612255).

Almost surely, 2^168555053 is an apocalyptic number.

It is an amenable number.

168555053 is a deficient number, since it is larger than the sum of its proper divisors (1893967).

168555053 is an equidigital number, since it uses as much as digits as its factorization.

168555053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1893966.

The product of its (nonzero) digits is 90000, while the sum is 38.

The square root of 168555053 is about 12982.8753748929. The cubic root of 168555053 is about 552.3918454990.

The spelling of 168555053 in words is "one hundred sixty-eight million, five hundred fifty-five thousand, fifty-three".