25383921 has 8 divisors (see below), whose sum is σ = 33892320. Its totient is φ = 16899072.

The previous prime is 25383913. The next prime is 25383923. The reversal of 25383921 is 12938352.

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

It is not a de Polignac number, because 25383921 - 2³ = 25383913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25383923) 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, 3195 + ... + 7808.

It is an arithmetic number, because the mean of its divisors is an integer number (4236540).

Almost surely, 2^25383921 is an apocalyptic number.

It is an amenable number.

25383921 is a deficient number, since it is larger than the sum of its proper divisors (8508399).

25383921 is a wasteful number, since it uses less digits than its factorization.

25383921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11775.

The product of its digits is 12960, while the sum is 33.

The square root of 25383921 is about 5038.2458256818. The cubic root of 25383921 is about 293.8909656302.

The spelling of 25383921 in words is "twenty-five million, three hundred eighty-three thousand, nine hundred twenty-one".