25271425 has 24 divisors (see below), whose sum is σ = 33435360. Its totient is φ = 18892800.

The previous prime is 25271423. The next prime is 25271429. The reversal of 25271425 is 52417252.

It is not a de Polignac number, because 25271425 - 2¹ = 25271423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25271393 and 25271402.

It is not an unprimeable number, because it can be changed into a prime (25271423) 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, 39105 + ... + 39745.

It is an arithmetic number, because the mean of its divisors is an integer number (1393140).

Almost surely, 2^25271425 is an apocalyptic number.

25271425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25271425 is a deficient number, since it is larger than the sum of its proper divisors (8163935).

25271425 is a wasteful number, since it uses less digits than its factorization.

25271425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753 (or 748 counting only the distinct ones).

The product of its digits is 5600, while the sum is 28.

The square root of 25271425 is about 5027.0692257020. The cubic root of 25271425 is about 293.4561691408.

Adding to 25271425 its reverse (52417252), we get a palindrome (77688677).

The spelling of 25271425 in words is "twenty-five million, two hundred seventy-one thousand, four hundred twenty-five".