20130253 has 32 divisors (see below), whose sum is σ = 25804800. Its totient is φ = 15422400.

The previous prime is 20130251. The next prime is 20130281. The reversal of 20130253 is 35203102.

It is a cyclic number.

It is not a de Polignac number, because 20130253 - 2¹ = 20130251 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 (20130251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84108 + ... + 84346.

It is an arithmetic number, because the mean of its divisors is an integer number (806400).

Almost surely, 2^20130253 is an apocalyptic number.

It is an amenable number.

20130253 is a deficient number, since it is larger than the sum of its proper divisors (5674547).

20130253 is a wasteful number, since it uses less digits than its factorization.

20130253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 20130253 is about 4486.6750495216. The cubic root of 20130253 is about 272.0297554313.

Adding to 20130253 its reverse (35203102), we get a palindrome (55333355).

The spelling of 20130253 in words is "twenty million, one hundred thirty thousand, two hundred fifty-three".