23211325 has 6 divisors (see below), whose sum is σ = 28782074. Its totient is φ = 18569040.

The previous prime is 23211323. The next prime is 23211329. The reversal of 23211325 is 52311232.

It can be written as a sum of positive squares in 3 ways, for example, as 4149369 + 19061956 = 2037^2 + 4366^2 .

It is not a de Polignac number, because 23211325 - 2¹ = 23211323 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 (23211323) 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 5 ways as a sum of consecutive naturals, for example, 464202 + ... + 464251.

Almost surely, 2^23211325 is an apocalyptic number.

23211325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23211325 is a deficient number, since it is larger than the sum of its proper divisors (5570749).

23211325 is an equidigital number, since it uses as much as digits as its factorization.

23211325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 928463 (or 928458 counting only the distinct ones).

The product of its digits is 360, while the sum is 19.

The square root of 23211325 is about 4817.8133006583. The cubic root of 23211325 is about 285.2550297489.

Adding to 23211325 its reverse (52311232), we get a palindrome (75522557).

The spelling of 23211325 in words is "twenty-three million, two hundred eleven thousand, three hundred twenty-five".