66253 has 8 divisors (see below), whose sum is σ = 76320. Its totient is φ = 56880.

The previous prime is 66239. The next prime is 66271. The reversal of 66253 is 35266.

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 66253 - 2⁵ = 66221 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51 + ... + 367.

It is an arithmetic number, because the mean of its divisors is an integer number (9540).

2⁶⁶²⁵³ is an apocalyptic number.

It is an amenable number.

66253 is a deficient number, since it is larger than the sum of its proper divisors (10067).

66253 is a wasteful number, since it uses less digits than its factorization.

66253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347.

The product of its digits is 1080, while the sum is 22.

The square root of 66253 is about 257.3965811739. The cubic root of 66253 is about 40.4639724313.

The spelling of 66253 in words is "sixty-six thousand, two hundred fifty-three".