225171473057 has 4 divisors (see below), whose sum is σ = 225172463280. Its totient is φ = 225170482836.

The previous prime is 225171473029. The next prime is 225171473077. The reversal of 225171473057 is 750374171522.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 225171473057 - 2²² = 225167278753 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 225171472999 and 225171473017.

It is not an unprimeable number, because it can be changed into a prime (225171473017) 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, 35618 + ... + 672020.

It is an arithmetic number, because the mean of its divisors is an integer number (56293115820).

Almost surely, 2^225171473057 is an apocalyptic number.

It is an amenable number.

225171473057 is a deficient number, since it is larger than the sum of its proper divisors (990223).

225171473057 is an equidigital number, since it uses as much as digits as its factorization.

225171473057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990222.

The product of its (nonzero) digits is 411600, while the sum is 44.

The spelling of 225171473057 in words is "two hundred twenty-five billion, one hundred seventy-one million, four hundred seventy-three thousand, fifty-seven".