225910407197 has 4 divisors (see below), whose sum is σ = 232016093916. Its totient is φ = 219804720480.

The previous prime is 225910407167. The next prime is 225910407263. The reversal of 225910407197 is 791704019522.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 158650059481 + 67260347716 = 398309^2 + 259346^2 .

It is a cyclic number.

It is not a de Polignac number, because 225910407197 - 2⁶ = 225910407133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225910407167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3052843304 + ... + 3052843377.

It is an arithmetic number, because the mean of its divisors is an integer number (58004023479).

Almost surely, 2^225910407197 is an apocalyptic number.

It is an amenable number.

225910407197 is a deficient number, since it is larger than the sum of its proper divisors (6105686719).

225910407197 is an equidigital number, since it uses as much as digits as its factorization.

225910407197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6105686718.

The product of its (nonzero) digits is 317520, while the sum is 47.

The spelling of 225910407197 in words is "two hundred twenty-five billion, nine hundred ten million, four hundred seven thousand, one hundred ninety-seven".