225431205 has 8 divisors (see below), whose sum is σ = 360689952. Its totient is φ = 120229968.

The previous prime is 225431183. The next prime is 225431209. The reversal of 225431205 is 502134522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 225431205 - 2⁷ = 225431077 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225431209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7514359 + ... + 7514388.

It is an arithmetic number, because the mean of its divisors is an integer number (45086244).

Almost surely, 2^225431205 is an apocalyptic number.

It is an amenable number.

225431205 is a deficient number, since it is larger than the sum of its proper divisors (135258747).

225431205 is a wasteful number, since it uses less digits than its factorization.

225431205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15028755.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 225431205 is about 15014.3666200077. The cubic root of 225431205 is about 608.6084961898.

Adding to 225431205 its reverse (502134522), we get a palindrome (727565727).

The spelling of 225431205 in words is "two hundred twenty-five million, four hundred thirty-one thousand, two hundred five".