225142325 has 6 divisors (see below), whose sum is σ = 279176514. Its totient is φ = 180113840.

The previous prime is 225142319. The next prime is 225142363. The reversal of 225142325 is 523241522.

It can be written as a sum of positive squares in 3 ways, for example, as 71605444 + 153536881 = 8462^2 + 12391^2 .

It is not a de Polignac number, because 225142325 - 2⁶ = 225142261 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 225142294 and 225142303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4502822 + ... + 4502871.

It is an arithmetic number, because the mean of its divisors is an integer number (46529419).

Almost surely, 2^225142325 is an apocalyptic number.

225142325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

225142325 is a deficient number, since it is larger than the sum of its proper divisors (54034189).

225142325 is an equidigital number, since it uses as much as digits as its factorization.

225142325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9005703 (or 9005698 counting only the distinct ones).

The product of its digits is 4800, while the sum is 26.

The square root of 225142325 is about 15004.7434166666. The cubic root of 225142325 is about 608.3484168817.

Adding to 225142325 its reverse (523241522), we get a palindrome (748383847).

The spelling of 225142325 in words is "two hundred twenty-five million, one hundred forty-two thousand, three hundred twenty-five".