225111400 has 24 divisors (see below), whose sum is σ = 523384470. Its totient is φ = 90044480.

The previous prime is 225111391. The next prime is 225111401. The reversal of 225111400 is 4111522.

225111400 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 210656196 + 14455204 = 14514^2 + 3802^2 .

It is not an unprimeable number, because it can be changed into a prime (225111401) 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, 562579 + ... + 562978.

Almost surely, 2^225111400 is an apocalyptic number.

225111400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225111400 is an abundant number, since it is smaller than the sum of its proper divisors (298273070).

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

225111400 is a wasteful number, since it uses less digits than its factorization.

225111400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125573 (or 1125564 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 225111400 is about 15003.7128738189. The cubic root of 225111400 is about 608.3205618553.

Adding to 225111400 its reverse (4111522), we get a palindrome (229222922).

The spelling of 225111400 in words is "two hundred twenty-five million, one hundred eleven thousand, four hundred".