225442544 has 20 divisors (see below), whose sum is σ = 438380424. Its totient is φ = 112312128.

The previous prime is 225442501. The next prime is 225442561. The reversal of 225442544 is 445244522.

It is a self number, because there is not a number n which added to its sum of digits gives 225442544.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 21002 + ... + 29865.

Almost surely, 2^225442544 is an apocalyptic number.

It is an amenable number.

225442544 is a deficient number, since it is larger than the sum of its proper divisors (212937880).

225442544 is a wasteful number, since it uses less digits than its factorization.

225442544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51152 (or 51146 counting only the distinct ones).

The product of its digits is 51200, while the sum is 32.

The square root of 225442544 is about 15014.7442202656. The cubic root of 225442544 is about 608.6187001839.

The spelling of 225442544 in words is "two hundred twenty-five million, four hundred forty-two thousand, five hundred forty-four".