225571405 has 8 divisors (see below), whose sum is σ = 270768384. Its totient is φ = 180402000.

The previous prime is 225571403. The next prime is 225571417. The reversal of 225571405 is 504175522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 225571405 - 2¹ = 225571403 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225571403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22540 + ... + 30970.

It is an arithmetic number, because the mean of its divisors is an integer number (33846048).

Almost surely, 2^225571405 is an apocalyptic number.

It is an amenable number.

225571405 is a deficient number, since it is larger than the sum of its proper divisors (45196979).

225571405 is an equidigital number, since it uses as much as digits as its factorization.

225571405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13787.

The product of its (nonzero) digits is 14000, while the sum is 31.

The square root of 225571405 is about 15019.0347559355. The cubic root of 225571405 is about 608.7346384845.

The spelling of 225571405 in words is "two hundred twenty-five million, five hundred seventy-one thousand, four hundred five".