25323381 has 8 divisors (see below), whose sum is σ = 37516160. Its totient is φ = 16882236.

The previous prime is 25323377. The next prime is 25323401. The reversal of 25323381 is 18332352.

It is not a de Polignac number, because 25323381 - 2² = 25323377 is a prime.

It is a super-2 number, since 2×25323381² = 1282547250542322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 937903 = 25323381 / (2 + 5 + 3 + 2 + 3 + 3 + 8 + 1).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25323301) 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 7 ways as a sum of consecutive naturals, for example, 468925 + ... + 468978.

It is an arithmetic number, because the mean of its divisors is an integer number (4689520).

Almost surely, 2^25323381 is an apocalyptic number.

It is an amenable number.

25323381 is a deficient number, since it is larger than the sum of its proper divisors (12192779).

25323381 is an equidigital number, since it uses as much as digits as its factorization.

25323381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 937912 (or 937906 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 25323381 is about 5032.2341956630. The cubic root of 25323381 is about 293.6571388383.

The spelling of 25323381 in words is "twenty-five million, three hundred twenty-three thousand, three hundred eighty-one".