225401112 has 24 divisors (see below), whose sum is σ = 610461540. Its totient is φ = 75133680.

The previous prime is 225401107. The next prime is 225401119. The reversal of 225401112 is 211104522.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×225401112² = 101611322581673088, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225401119) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1565214 + ... + 1565357.

Almost surely, 2^225401112 is an apocalyptic number.

It is an amenable number.

225401112 is an abundant number, since it is smaller than the sum of its proper divisors (385060428).

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

225401112 is a wasteful number, since it uses less digits than its factorization.

225401112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3130583 (or 3130576 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 225401112 is about 15013.3644463858. The cubic root of 225401112 is about 608.5814137658.

Adding to 225401112 its reverse (211104522), we get a palindrome (436505634).

The spelling of 225401112 in words is "two hundred twenty-five million, four hundred one thousand, one hundred twelve".