25869925 has 24 divisors (see below), whose sum is σ = 34149600. Its totient is φ = 19385280.

The previous prime is 25869923. The next prime is 25869947. The reversal of 25869925 is 52996852.

It is a happy number.

It is not a de Polignac number, because 25869925 - 2¹ = 25869923 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25869923) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50571 + ... + 51079.

It is an arithmetic number, because the mean of its divisors is an integer number (1422900).

Almost surely, 2^25869925 is an apocalyptic number.

25869925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25869925 is a deficient number, since it is larger than the sum of its proper divisors (8279675).

25869925 is a wasteful number, since it uses less digits than its factorization.

25869925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645 (or 640 counting only the distinct ones).

The product of its digits is 388800, while the sum is 46.

The square root of 25869925 is about 5086.2486175963. The cubic root of 25869925 is about 295.7547464777.

The spelling of 25869925 in words is "twenty-five million, eight hundred sixty-nine thousand, nine hundred twenty-five".