225230425 has 24 divisors (see below), whose sum is σ = 326979072. Its totient is φ = 150672000.

The previous prime is 225230419. The next prime is 225230429. The reversal of 225230425 is 524032522.

It is a happy number.

It is not a de Polignac number, because 225230425 - 2¹⁷ = 225099353 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 225230425.

It is not an unprimeable number, because it can be changed into a prime (225230429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8521 + ... + 22870.

It is an arithmetic number, because the mean of its divisors is an integer number (13624128).

Almost surely, 2^225230425 is an apocalyptic number.

225230425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

225230425 is a deficient number, since it is larger than the sum of its proper divisors (101748647).

225230425 is a wasteful number, since it uses less digits than its factorization.

225230425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31449 (or 31444 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 225230425 is about 15007.6788678330. The cubic root of 225230425 is about 608.4277570743.

Adding to 225230425 its reverse (524032522), we get a palindrome (749262947).

The spelling of 225230425 in words is "two hundred twenty-five million, two hundred thirty thousand, four hundred twenty-five".