225311406 has 32 divisors (see below), whose sum is σ = 459895968. Its totient is φ = 73574400.

The previous prime is 225311399. The next prime is 225311407. The reversal of 225311406 is 604113522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225311407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56866 + ... + 60698.

It is an arithmetic number, because the mean of its divisors is an integer number (14371749).

Almost surely, 2^225311406 is an apocalyptic number.

225311406 is an abundant number, since it is smaller than the sum of its proper divisors (234584562).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225311406 is a wasteful number, since it uses less digits than its factorization.

225311406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4036.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 225311406 is about 15010.3766108649. The cubic root of 225311406 is about 608.5006678637.

Adding to 225311406 its reverse (604113522), we get a palindrome (829424928).

The spelling of 225311406 in words is "two hundred twenty-five million, three hundred eleven thousand, four hundred six".