225444515 has 16 divisors (see below), whose sum is σ = 278497440. Its totient is φ = 175069440.

The previous prime is 225444503. The next prime is 225444523. The reversal of 225444515 is 515444522.

It is not a de Polignac number, because 225444515 - 2⁶ = 225444451 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95216 + ... + 97554.

It is an arithmetic number, because the mean of its divisors is an integer number (17406090).

Almost surely, 2^225444515 is an apocalyptic number.

225444515 is a deficient number, since it is larger than the sum of its proper divisors (53052925).

225444515 is a wasteful number, since it uses less digits than its factorization.

225444515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2902.

The product of its digits is 32000, while the sum is 32.

The square root of 225444515 is about 15014.8098556059. The cubic root of 225444515 is about 608.6204738568.

The spelling of 225444515 in words is "two hundred twenty-five million, four hundred forty-four thousand, five hundred fifteen".