225045556 has 18 divisors (see below), whose sum is σ = 403681670. Its totient is φ = 109775040.

The previous prime is 225045553. The next prime is 225045589. The reversal of 225045556 is 655540522.

It can be written as a sum of positive squares in 3 ways, for example, as 15085456 + 209960100 = 3884^2 + 14490^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225045551) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10011 + ... + 23458.

Almost surely, 2^225045556 is an apocalyptic number.

It is an amenable number.

225045556 is a deficient number, since it is larger than the sum of its proper divisors (178636114).

225045556 is a wasteful number, since it uses less digits than its factorization.

225045556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33555 (or 33512 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 34.

The square root of 225045556 is about 15001.5184564763. The cubic root of 225045556 is about 608.2612457938.

The spelling of 225045556 in words is "two hundred twenty-five million, forty-five thousand, five hundred fifty-six".