225720407071 has 4 divisors (see below), whose sum is σ = 225754058200. Its totient is φ = 225686755944.

The previous prime is 225720407069. The next prime is 225720407117. The reversal of 225720407071 is 170704027522.

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 225720407071 - 2¹ = 225720407069 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 225720407071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225720407041) 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, 16815501 + ... + 16828918.

It is an arithmetic number, because the mean of its divisors is an integer number (56438514550).

Almost surely, 2^225720407071 is an apocalyptic number.

225720407071 is a deficient number, since it is larger than the sum of its proper divisors (33651129).

225720407071 is an equidigital number, since it uses as much as digits as its factorization.

225720407071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33651128.

The product of its (nonzero) digits is 54880, while the sum is 37.

The spelling of 225720407071 in words is "two hundred twenty-five billion, seven hundred twenty million, four hundred seven thousand, seventy-one".