225616436 has 12 divisors (see below), whose sum is σ = 395227140. Its totient is φ = 112694400.

The previous prime is 225616429. The next prime is 225616441. The reversal of 225616436 is 634616522.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 153264400 + 72352036 = 12380^2 + 8506^2 .

It is a junction number, because it is equal to n+sod(n) for n = 225616396 and 225616405.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23915 + ... + 31986.

It is an arithmetic number, because the mean of its divisors is an integer number (32935595).

Almost surely, 2^225616436 is an apocalyptic number.

It is an amenable number.

225616436 is a deficient number, since it is larger than the sum of its proper divisors (169610704).

225616436 is a wasteful number, since it uses less digits than its factorization.

225616436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56914 (or 56912 counting only the distinct ones).

The product of its digits is 51840, while the sum is 35.

The square root of 225616436 is about 15020.5338120854. The cubic root of 225616436 is about 608.7751431836.

The spelling of 225616436 in words is "two hundred twenty-five million, six hundred sixteen thousand, four hundred thirty-six".