225315201 has 4 divisors (see below), whose sum is σ = 300420272. Its totient is φ = 150210132.

The previous prime is 225315197. The next prime is 225315217. The reversal of 225315201 is 102513522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 225315201 - 2² = 225315197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225315001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37552531 + ... + 37552536.

It is an arithmetic number, because the mean of its divisors is an integer number (75105068).

Almost surely, 2^225315201 is an apocalyptic number.

It is an amenable number.

225315201 is a deficient number, since it is larger than the sum of its proper divisors (75105071).

225315201 is an equidigital number, since it uses as much as digits as its factorization.

225315201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75105070.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 225315201 is about 15010.5030228837. The cubic root of 225315201 is about 608.5040842421.

Adding to 225315201 its reverse (102513522), we get a palindrome (327828723).

The spelling of 225315201 in words is "two hundred twenty-five million, three hundred fifteen thousand, two hundred one".