25493885 has 8 divisors (see below), whose sum is σ = 30620256. Its totient is φ = 20376720.

The previous prime is 25493869. The next prime is 25493887. The reversal of 25493885 is 58839452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25493885 - 2⁴ = 25493869 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25493887) 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 7 ways as a sum of consecutive naturals, for example, 7970 + ... + 10700.

It is an arithmetic number, because the mean of its divisors is an integer number (3827532).

Almost surely, 2^25493885 is an apocalyptic number.

It is an amenable number.

25493885 is a deficient number, since it is larger than the sum of its proper divisors (5126371).

25493885 is a wasteful number, since it uses less digits than its factorization.

25493885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4603.

The product of its digits is 345600, while the sum is 44.

The square root of 25493885 is about 5049.1469576553. The cubic root of 25493885 is about 294.3147361398.

The spelling of 25493885 in words is "twenty-five million, four hundred ninety-three thousand, eight hundred eighty-five".