25623225 has 36 divisors (see below), whose sum is σ = 46889856. Its totient is φ = 13369440.

The previous prime is 25623217. The next prime is 25623239. The reversal of 25623225 is 52232652.

It is not a de Polignac number, because 25623225 - 2³ = 25623217 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 9364 + ... + 11786.

It is an arithmetic number, because the mean of its divisors is an integer number (1302496).

Almost surely, 2^25623225 is an apocalyptic number.

25623225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25623225 is a deficient number, since it is larger than the sum of its proper divisors (21266631).

25623225 is a wasteful number, since it uses less digits than its factorization.

25623225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2486 (or 2478 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 25623225 is about 5061.9388577896. The cubic root of 25623225 is about 294.8116196516.

Adding to 25623225 its reverse (52232652), we get a palindrome (77855877).

The spelling of 25623225 in words is "twenty-five million, six hundred twenty-three thousand, two hundred twenty-five".