25920393 has 8 divisors (see below), whose sum is σ = 36593568. Its totient is φ = 16263744.

The previous prime is 25920383. The next prime is 25920397. The reversal of 25920393 is 39302952.

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

It is not a de Polignac number, because 25920393 - 2¹⁷ = 25789321 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (25920397) 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, 254071 + ... + 254172.

It is an arithmetic number, because the mean of its divisors is an integer number (4574196).

Almost surely, 2^25920393 is an apocalyptic number.

It is an amenable number.

25920393 is a deficient number, since it is larger than the sum of its proper divisors (10673175).

25920393 is a wasteful number, since it uses less digits than its factorization.

25920393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508263.

The product of its (nonzero) digits is 14580, while the sum is 33.

The square root of 25920393 is about 5091.2074206420. The cubic root of 25920393 is about 295.9469446240.

The spelling of 25920393 in words is "twenty-five million, nine hundred twenty thousand, three hundred ninety-three".