25223211 has 16 divisors (see below), whose sum is σ = 40242720. Its totient is φ = 15521760.

The previous prime is 25223197. The next prime is 25223213. The reversal of 25223211 is 11232252.

It is not a de Polignac number, because 25223211 - 2⁹ = 25222699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25223213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35580 + ... + 36281.

It is an arithmetic number, because the mean of its divisors is an integer number (2515170).

Almost surely, 2^25223211 is an apocalyptic number.

25223211 is a deficient number, since it is larger than the sum of its proper divisors (15019509).

25223211 is a wasteful number, since it uses less digits than its factorization.

25223211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71883 (or 71877 counting only the distinct ones).

The product of its digits is 240, while the sum is 18.

The square root of 25223211 is about 5022.2714980375. The cubic root of 25223211 is about 293.2694272227.

Adding to 25223211 its reverse (11232252), we get a palindrome (36455463).

The spelling of 25223211 in words is "twenty-five million, two hundred twenty-three thousand, two hundred eleven".