225422871 has 4 divisors (see below), whose sum is σ = 300563832. Its totient is φ = 150281912.

The previous prime is 225422867. The next prime is 225422891. The reversal of 225422871 is 178224522.

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

It is a cyclic number.

It is not a de Polignac number, because 225422871 - 2² = 225422867 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225422851) 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, 37570476 + ... + 37570481.

It is an arithmetic number, because the mean of its divisors is an integer number (75140958).

Almost surely, 2^225422871 is an apocalyptic number.

225422871 is a deficient number, since it is larger than the sum of its proper divisors (75140961).

225422871 is an equidigital number, since it uses as much as digits as its factorization.

225422871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75140960.

The product of its digits is 17920, while the sum is 33.

The square root of 225422871 is about 15014.0890832578. The cubic root of 225422871 is about 608.6009961845.

The spelling of 225422871 in words is "two hundred twenty-five million, four hundred twenty-two thousand, eight hundred seventy-one".