225500124 has 24 divisors (see below), whose sum is σ = 535086720. Its totient is φ = 73892464.

The previous prime is 225500111. The next prime is 225500141. The reversal of 225500124 is 421005522.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 225500124.

It is a congruent number.

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, 158544 + ... + 159959.

It is an arithmetic number, because the mean of its divisors is an integer number (22295280).

Almost surely, 2^225500124 is an apocalyptic number.

It is an amenable number.

225500124 is an abundant number, since it is smaller than the sum of its proper divisors (309586596).

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

225500124 is a wasteful number, since it uses less digits than its factorization.

225500124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318569 (or 318567 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 225500124 is about 15016.6615464290. The cubic root of 225500124 is about 608.6705112884.

Adding to 225500124 its reverse (421005522), we get a palindrome (646505646).

The spelling of 225500124 in words is "two hundred twenty-five million, five hundred thousand, one hundred twenty-four".