25323641 has 24 divisors (see below), whose sum is σ = 31026240. Its totient is φ = 20580000.

The previous prime is 25323631. The next prime is 25323677. The reversal of 25323641 is 14632352.

It is not a de Polignac number, because 25323641 - 2¹⁴ = 25307257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25323641.

It is not an unprimeable number, because it can be changed into a prime (25323631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 100766 + ... + 101016.

It is an arithmetic number, because the mean of its divisors is an integer number (1292760).

Almost surely, 2^25323641 is an apocalyptic number.

It is an amenable number.

25323641 is a deficient number, since it is larger than the sum of its proper divisors (5702599).

25323641 is a wasteful number, since it uses less digits than its factorization.

25323641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365 (or 358 counting only the distinct ones).

The product of its digits is 4320, while the sum is 26.

The square root of 25323641 is about 5032.2600290526. The cubic root of 25323641 is about 293.6581438462.

Adding to 25323641 its reverse (14632352), we get a palindrome (39955993).

The spelling of 25323641 in words is "twenty-five million, three hundred twenty-three thousand, six hundred forty-one".