225084257 has 8 divisors (see below), whose sum is σ = 227777832. Its totient is φ = 222400000.

The previous prime is 225084227. The next prime is 225084263. The reversal of 225084257 is 752480522.

It can be written as a sum of positive squares in 4 ways, for example, as 5125696 + 219958561 = 2264^2 + 14831^2 .

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 225084257 - 2⁸ = 225084001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225084227) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 54257 + ... + 58257.

It is an arithmetic number, because the mean of its divisors is an integer number (28472229).

Almost surely, 2^225084257 is an apocalyptic number.

It is an amenable number.

225084257 is a deficient number, since it is larger than the sum of its proper divisors (2693575).

225084257 is a wasteful number, since it uses less digits than its factorization.

225084257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4659.

The product of its (nonzero) digits is 44800, while the sum is 35.

The square root of 225084257 is about 15002.8083037810. The cubic root of 225084257 is about 608.2961112815.

The spelling of 225084257 in words is "two hundred twenty-five million, eighty-four thousand, two hundred fifty-seven".