225167638 has 8 divisors (see below), whose sum is σ = 344124288. Its totient is φ = 110459544.

The previous prime is 225167623. The next prime is 225167671. The reversal of 225167638 is 836761522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 225167638.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1062006 + ... + 1062217.

It is an arithmetic number, because the mean of its divisors is an integer number (43015536).

Almost surely, 2^225167638 is an apocalyptic number.

225167638 is a deficient number, since it is larger than the sum of its proper divisors (118956650).

225167638 is a wasteful number, since it uses less digits than its factorization.

225167638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2124278.

The product of its digits is 120960, while the sum is 40.

The square root of 225167638 is about 15005.5868928876. The cubic root of 225167638 is about 608.3712151219.

The spelling of 225167638 in words is "two hundred twenty-five million, one hundred sixty-seven thousand, six hundred thirty-eight".