23215325 has 24 divisors (see below), whose sum is σ = 33533568. Its totient is φ = 15612480.

The previous prime is 23215279. The next prime is 23215327. The reversal of 23215325 is 52351232.

It is not a de Polignac number, because 23215325 - 2¹² = 23211229 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23215325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23215327) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8024 + ... + 10526.

It is an arithmetic number, because the mean of its divisors is an integer number (1397232).

Almost surely, 2^23215325 is an apocalyptic number.

23215325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23215325 is a deficient number, since it is larger than the sum of its proper divisors (10318243).

23215325 is a wasteful number, since it uses less digits than its factorization.

23215325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2573 (or 2568 counting only the distinct ones).

The product of its digits is 1800, while the sum is 23.

The square root of 23215325 is about 4818.2284088656. The cubic root of 23215325 is about 285.2714147762.

Adding to 23215325 its reverse (52351232), we get a palindrome (75566557).

The spelling of 23215325 in words is "twenty-three million, two hundred fifteen thousand, three hundred twenty-five".