25928403 has 8 divisors (see below), whose sum is σ = 34650000. Its totient is φ = 17246208.

The previous prime is 25928401. The next prime is 25928479. The reversal of 25928403 is 30482952.

It is a happy number.

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

It is not a de Polignac number, because 25928403 - 2¹ = 25928401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25928401) 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, 8278 + ... + 10971.

It is an arithmetic number, because the mean of its divisors is an integer number (4331250).

Almost surely, 2^25928403 is an apocalyptic number.

25928403 is a deficient number, since it is larger than the sum of its proper divisors (8721597).

25928403 is a wasteful number, since it uses less digits than its factorization.

25928403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19701.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 25928403 is about 5091.9940102086. The cubic root of 25928403 is about 295.9774262978.

The spelling of 25928403 in words is "twenty-five million, nine hundred twenty-eight thousand, four hundred three".