20125223 has 4 divisors (see below), whose sum is σ = 20146800. Its totient is φ = 20103648.

The previous prime is 20125177. The next prime is 20125241. The reversal of 20125223 is 32252102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32252102 = 2 ⋅16126051.

It is a cyclic number.

It is not a de Polignac number, because 20125223 - 2¹⁴ = 20108839 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 (20125243) 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, 9323 + ... + 11276.

It is an arithmetic number, because the mean of its divisors is an integer number (5036700).

Almost surely, 2^20125223 is an apocalyptic number.

20125223 is a deficient number, since it is larger than the sum of its proper divisors (21577).

20125223 is an equidigital number, since it uses as much as digits as its factorization.

20125223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21576.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 20125223 is about 4486.1144657710. The cubic root of 20125223 is about 272.0070959438.

Adding to 20125223 its reverse (32252102), we get a palindrome (52377325).

The spelling of 20125223 in words is "twenty million, one hundred twenty-five thousand, two hundred twenty-three".