225463613 has 8 divisors (see below), whose sum is σ = 228021816. Its totient is φ = 222912000.

The previous prime is 225463591. The next prime is 225463619. The reversal of 225463613 is 316364522.

It can be written as a sum of positive squares in 4 ways, for example, as 169468324 + 55995289 = 13018^2 + 7483^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 225463613 - 2¹⁶ = 225398077 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 225463613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225463619) 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, 103253 + ... + 105413.

It is an arithmetic number, because the mean of its divisors is an integer number (28502727).

Almost surely, 2^225463613 is an apocalyptic number.

It is an amenable number.

225463613 is a deficient number, since it is larger than the sum of its proper divisors (2558203).

225463613 is a wasteful number, since it uses less digits than its factorization.

225463613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3295.

The product of its digits is 25920, while the sum is 32.

The square root of 225463613 is about 15015.4458142274. The cubic root of 225463613 is about 608.6376593205.

Subtracting 225463613 from its reverse (316364522), we obtain a palindrome (90900909).

The spelling of 225463613 in words is "two hundred twenty-five million, four hundred sixty-three thousand, six hundred thirteen".