210253 has 4 divisors (see below), whose sum is σ = 211680. Its totient is φ = 208828.

The previous prime is 210247. The next prime is 210257. The reversal of 210253 is 352012.

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.

It is a cyclic number.

It is not a de Polignac number, because 210253 - 2¹³ = 202061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210257) 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, 463 + ... + 796.

It is an arithmetic number, because the mean of its divisors is an integer number (52920).

2²¹⁰²⁵³ is an apocalyptic number.

It is an amenable number.

210253 is a deficient number, since it is larger than the sum of its proper divisors (1427).

210253 is a wasteful number, since it uses less digits than its factorization.

210253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1426.

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 210253 is about 458.5335320345. The cubic root of 210253 is about 59.4630799839.

Adding to 210253 its reverse (352012), we get a palindrome (562265).

The spelling of 210253 in words is "two hundred ten thousand, two hundred fifty-three".