225183966 has 32 divisors (see below), whose sum is σ = 515228928. Its totient is φ = 64272960.

The previous prime is 225183947. The next prime is 225183967. The reversal of 225183966 is 669381522.

225183966 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225183967) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52146 + ... + 56298.

It is an arithmetic number, because the mean of its divisors is an integer number (16100904).

Almost surely, 2^225183966 is an apocalyptic number.

225183966 is an abundant number, since it is smaller than the sum of its proper divisors (290044962).

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

225183966 is a wasteful number, since it uses less digits than its factorization.

225183966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5456.

The product of its digits is 155520, while the sum is 42.

The square root of 225183966 is about 15006.1309470496. The cubic root of 225183966 is about 608.3859200845.

The spelling of 225183966 in words is "two hundred twenty-five million, one hundred eighty-three thousand, nine hundred sixty-six".