225423001 has 2 divisors, whose sum is σ = 225423002. Its totient is φ = 225423000.

The previous prime is 225422987. The next prime is 225423017. The reversal of 225423001 is 100324522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117158976 + 108264025 = 10824^2 + 10405^2 .

It is a cyclic number.

It is not a de Polignac number, because 225423001 - 2⁹ = 225422489 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 225423001.

It is not a weakly prime, because it can be changed into another prime (225423091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112711500 + 112711501.

It is an arithmetic number, because the mean of its divisors is an integer number (112711501).

Almost surely, 2^225423001 is an apocalyptic number.

It is an amenable number.

225423001 is a deficient number, since it is larger than the sum of its proper divisors (1).

225423001 is an equidigital number, since it uses as much as digits as its factorization.

225423001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 225423001 is about 15014.0934125241. The cubic root of 225423001 is about 608.6011131767.

Adding to 225423001 its reverse (100324522), we get a palindrome (325747523).

The spelling of 225423001 in words is "two hundred twenty-five million, four hundred twenty-three thousand, one".