225401066 has 16 divisors (see below), whose sum is σ = 388251360. Its totient is φ = 97062480.

The previous prime is 225401053. The next prime is 225401101. The reversal of 225401066 is 660104522.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 269201 + ... + 270036.

It is an arithmetic number, because the mean of its divisors is an integer number (24265710).

Almost surely, 2^225401066 is an apocalyptic number.

225401066 is a deficient number, since it is larger than the sum of its proper divisors (162850294).

225401066 is a wasteful number, since it uses less digits than its factorization.

225401066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539269.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 225401066 is about 15013.3629144173. The cubic root of 225401066 is about 608.5813723659.

Adding to 225401066 its reverse (660104522), we get a palindrome (885505588).

The spelling of 225401066 in words is "two hundred twenty-five million, four hundred one thousand, sixty-six".