25839625 has 16 divisors (see below), whose sum is σ = 36855936. Its totient is φ = 17718000.

The previous prime is 25839623. The next prime is 25839641. The reversal of 25839625 is 52693852.

It is not a de Polignac number, because 25839625 - 2¹ = 25839623 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25839623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13891 + ... + 15640.

It is an arithmetic number, because the mean of its divisors is an integer number (2303496).

Almost surely, 2^25839625 is an apocalyptic number.

25839625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25839625 is a deficient number, since it is larger than the sum of its proper divisors (11016311).

25839625 is an equidigital number, since it uses as much as digits as its factorization.

25839625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29553 (or 29543 counting only the distinct ones).

The product of its digits is 129600, while the sum is 40.

The square root of 25839625 is about 5083.2691252776. The cubic root of 25839625 is about 295.6392343564.

The spelling of 25839625 in words is "twenty-five million, eight hundred thirty-nine thousand, six hundred twenty-five".