10505223 has 12 divisors (see below), whose sum is σ = 15205320. Its totient is φ = 6989136.

The previous prime is 10505207. The next prime is 10505263. The reversal of 10505223 is 32250501.

It is a happy number.

It is not a de Polignac number, because 10505223 - 2⁴ = 10505207 is a prime.

It is a super-2 number, since 2×10505223² = 220719420559458, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10505196 and 10505205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10505263) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5293 + ... + 7001.

It is an arithmetic number, because the mean of its divisors is an integer number (1267110).

Almost surely, 2^10505223 is an apocalyptic number.

10505223 is a deficient number, since it is larger than the sum of its proper divisors (4700097).

10505223 is a wasteful number, since it uses less digits than its factorization.

10505223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2398 (or 2395 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 10505223 is about 3241.1761754030. The cubic root of 10505223 is about 219.0122592750.

Adding to 10505223 its reverse (32250501), we get a palindrome (42755724).

It can be divided in two parts, 1050522 and 3, that added together give a triangular number (1050525 = T₁₄₄₉).

The spelling of 10505223 in words is "ten million, five hundred five thousand, two hundred twenty-three".