225015538 has 8 divisors (see below), whose sum is σ = 368207280. Its totient is φ = 102279780.

The previous prime is 225015533. The next prime is 225015559. The reversal of 225015538 is 835510522.

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

It is not an unprimeable number, because it can be changed into a prime (225015533) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5113968 + ... + 5114011.

It is an arithmetic number, because the mean of its divisors is an integer number (46025910).

Almost surely, 2^225015538 is an apocalyptic number.

225015538 is a deficient number, since it is larger than the sum of its proper divisors (143191742).

225015538 is a wasteful number, since it uses less digits than its factorization.

225015538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10227992.

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 225015538 is about 15000.5179243918. The cubic root of 225015538 is about 608.2342000135.

The spelling of 225015538 in words is "two hundred twenty-five million, fifteen thousand, five hundred thirty-eight".