225322018 has 16 divisors (see below), whose sum is σ = 340179840. Its totient is φ = 111931776.

The previous prime is 225321997. The next prime is 225322037. The reversal of 225322018 is 810223522.

It is a junction number, because it is equal to n+sod(n) for n = 225321983 and 225322001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 309571 + ... + 310297.

It is an arithmetic number, because the mean of its divisors is an integer number (21261240).

Almost surely, 2^225322018 is an apocalyptic number.

225322018 is a deficient number, since it is larger than the sum of its proper divisors (114857822).

225322018 is a wasteful number, since it uses less digits than its factorization.

225322018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1521.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 225322018 is about 15010.7300955017. The cubic root of 225322018 is about 608.5102210237.

The spelling of 225322018 in words is "two hundred twenty-five million, three hundred twenty-two thousand, eighteen".