225006645471 has 4 divisors (see below), whose sum is σ = 300008860632. Its totient is φ = 150004430312.

The previous prime is 225006645431. The next prime is 225006645473. The reversal of 225006645471 is 174546600522.

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 225006645471 - 2¹⁹ = 225006121183 is a prime.

It is a super-3 number, since 3×225006645471³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225006645473) 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, 37501107576 + ... + 37501107581.

It is an arithmetic number, because the mean of its divisors is an integer number (75002215158).

Almost surely, 2^225006645471 is an apocalyptic number.

225006645471 is a deficient number, since it is larger than the sum of its proper divisors (75002215161).

225006645471 is an equidigital number, since it uses as much as digits as its factorization.

225006645471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75002215160.

The product of its (nonzero) digits is 403200, while the sum is 42.

The spelling of 225006645471 in words is "two hundred twenty-five billion, six million, six hundred forty-five thousand, four hundred seventy-one".