23781325 has 12 divisors (see below), whose sum is σ = 29551060. Its totient is φ = 18984960.

The previous prime is 23781323. The next prime is 23781341. The reversal of 23781325 is 52318732.

It can be written as a sum of positive squares in 6 ways, for example, as 93636 + 23687689 = 306^2 + 4867^2 .

It is not a de Polignac number, because 23781325 - 2¹ = 23781323 is a prime.

Its product of digits (10080) is a multiple of the sum of its prime factors (2016).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23781323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18607 + ... + 19843.

Almost surely, 2^23781325 is an apocalyptic number.

23781325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23781325 is a deficient number, since it is larger than the sum of its proper divisors (5769735).

23781325 is a wasteful number, since it uses less digits than its factorization.

23781325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2016 (or 2011 counting only the distinct ones).

The product of its digits is 10080, while the sum is 31.

The square root of 23781325 is about 4876.6099905570. The cubic root of 23781325 is about 287.5711733052.

The spelling of 23781325 in words is "twenty-three million, seven hundred eighty-one thousand, three hundred twenty-five".