225342407 has 2 divisors, whose sum is σ = 225342408. Its totient is φ = 225342406.

The previous prime is 225342389. The next prime is 225342421. The reversal of 225342407 is 704243522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 225342407 - 2¹⁰ = 225341383 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 225342407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225342457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112671203 + 112671204.

It is an arithmetic number, because the mean of its divisors is an integer number (112671204).

Almost surely, 2^225342407 is an apocalyptic number.

225342407 is a deficient number, since it is larger than the sum of its proper divisors (1).

225342407 is an equidigital number, since it uses as much as digits as its factorization.

225342407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13440, while the sum is 29.

The square root of 225342407 is about 15011.4092276508. The cubic root of 225342407 is about 608.5285748162.

Adding to 225342407 its reverse (704243522), we get a palindrome (929585929).

The spelling of 225342407 in words is "two hundred twenty-five million, three hundred forty-two thousand, four hundred seven".