25254224 has 10 divisors (see below), whose sum is σ = 48930090. Its totient is φ = 12627104.

The previous prime is 25254223. The next prime is 25254227. The reversal of 25254224 is 42245252.

It can be written as a sum of positive squares in only one way, i.e., 25200400 + 53824 = 5020^2 + 232^2 .

It is a junction number, because it is equal to n+sod(n) for n = 25254193 and 25254202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25254221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 789179 + ... + 789210.

It is an arithmetic number, because the mean of its divisors is an integer number (4893009).

It is a self-describing number.

Almost surely, 2^25254224 is an apocalyptic number.

It is an amenable number.

25254224 is a deficient number, since it is larger than the sum of its proper divisors (23675866).

25254224 is a wasteful number, since it uses less digits than its factorization.

25254224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1578397 (or 1578391 counting only the distinct ones).

The product of its digits is 6400, while the sum is 26.

The square root of 25254224 is about 5025.3580966932. The cubic root of 25254224 is about 293.3895736976.

Adding to 25254224 its reverse (42245252), we get a palindrome (67499476).

The spelling of 25254224 in words is "twenty-five million, two hundred fifty-four thousand, two hundred twenty-four".