20112253 has 4 divisors (see below), whose sum is σ = 22985440. Its totient is φ = 17239068.

The previous prime is 20112251. The next prime is 20112269. The reversal of 20112253 is 35221102.

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 not a de Polignac number, because 20112253 - 2¹ = 20112251 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 (20112251) 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, 1436583 + ... + 1436596.

It is an arithmetic number, because the mean of its divisors is an integer number (5746360).

Almost surely, 2^20112253 is an apocalyptic number.

It is an amenable number.

20112253 is a deficient number, since it is larger than the sum of its proper divisors (2873187).

20112253 is an equidigital number, since it uses as much as digits as its factorization.

20112253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2873186.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 20112253 is about 4484.6686611164. The cubic root of 20112253 is about 271.9486503772.

Adding to 20112253 its reverse (35221102), we get a palindrome (55333355).

The spelling of 20112253 in words is "twenty million, one hundred twelve thousand, two hundred fifty-three".