225205546 has 8 divisors (see below), whose sum is σ = 337898340. Its totient is φ = 112572768.

The previous prime is 225205543. The next prime is 225205553. The reversal of 225205546 is 645502522.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 196700625 + 28504921 = 14025^2 + 5339^2 .

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

It is not an unprimeable number, because it can be changed into a prime (225205543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4011 + ... + 21598.

Almost surely, 2^225205546 is an apocalyptic number.

225205546 is a deficient number, since it is larger than the sum of its proper divisors (112692794).

225205546 is a wasteful number, since it uses less digits than its factorization.

225205546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30008.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 225205546 is about 15006.8499692640. The cubic root of 225205546 is about 608.4053538968.

The spelling of 225205546 in words is "two hundred twenty-five million, two hundred five thousand, five hundred forty-six".