225057720471 has 4 divisors (see below), whose sum is σ = 300076960632. Its totient is φ = 150038480312.

The previous prime is 225057720457. The next prime is 225057720487. The reversal of 225057720471 is 174027750522.

It is a happy number.

225057720471 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225057720471 is a prime.

It is a super-3 number, since 3×225057720471³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225057720451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37509620076 + ... + 37509620081.

It is an arithmetic number, because the mean of its divisors is an integer number (75019240158).

Almost surely, 2^225057720471 is an apocalyptic number.

225057720471 is a deficient number, since it is larger than the sum of its proper divisors (75019240161).

225057720471 is an equidigital number, since it uses as much as digits as its factorization.

225057720471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75019240160.

The product of its (nonzero) digits is 274400, while the sum is 42.

The spelling of 225057720471 in words is "two hundred twenty-five billion, fifty-seven million, seven hundred twenty thousand, four hundred seventy-one".