225845485 has 8 divisors (see below), whose sum is σ = 275457816. Its totient is φ = 177714240.

The previous prime is 225845461. The next prime is 225845489. The reversal of 225845485 is 584548522.

It can be written as a sum of positive squares in 4 ways, for example, as 4609609 + 221235876 = 2147^2 + 14874^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-225845485 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 (225845489) 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, 369934 + ... + 370543.

It is an arithmetic number, because the mean of its divisors is an integer number (34432227).

Almost surely, 2^225845485 is an apocalyptic number.

It is an amenable number.

225845485 is a deficient number, since it is larger than the sum of its proper divisors (49612331).

225845485 is an equidigital number, since it uses as much as digits as its factorization.

225845485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740543.

The product of its digits is 512000, while the sum is 43.

The square root of 225845485 is about 15028.1564072244. The cubic root of 225845485 is about 608.9810858887.

The spelling of 225845485 in words is "two hundred twenty-five million, eight hundred forty-five thousand, four hundred eighty-five".