23309325 has 54 divisors (see below), whose sum is σ = 45281886. Its totient is φ = 11456640.

The previous prime is 23309309. The next prime is 23309339. The reversal of 23309325 is 52390332.

23309325 is a `hidden beast` number, since 2 + 330 + 9 + 325 = 666.

It can be written as a sum of positive squares in 9 ways, for example, as 21511044 + 1798281 = 4638^2 + 1341^2 .

It is not a de Polignac number, because 23309325 - 2⁴ = 23309309 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 37719 + ... + 38331.

Almost surely, 2^23309325 is an apocalyptic number.

23309325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23309325 is a deficient number, since it is larger than the sum of its proper divisors (21972561).

23309325 is a wasteful number, since it uses less digits than its factorization.

23309325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655 (or 634 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 27.

The square root of 23309325 is about 4827.9731772246. The cubic root of 23309325 is about 285.6559223050.

Adding to 23309325 its reverse (52390332), we get a palindrome (75699657).

The spelling of 23309325 in words is "twenty-three million, three hundred nine thousand, three hundred twenty-five".