225914521 has 8 divisors (see below), whose sum is σ = 258387840. Its totient is φ = 193491168.

The previous prime is 225914509. The next prime is 225914527. The reversal of 225914521 is 125419522.

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

It is a cyclic number.

It is not a de Polignac number, because 225914521 - 2⁷ = 225914393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225914527) 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 7 ways as a sum of consecutive naturals, for example, 2236 + ... + 21373.

It is an arithmetic number, because the mean of its divisors is an integer number (32298480).

Almost surely, 2^225914521 is an apocalyptic number.

It is an amenable number.

225914521 is a deficient number, since it is larger than the sum of its proper divisors (32473319).

225914521 is a wasteful number, since it uses less digits than its factorization.

225914521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24983.

The product of its digits is 7200, while the sum is 31.

The square root of 225914521 is about 15030.4531202489. The cubic root of 225914521 is about 609.0431302775.

The spelling of 225914521 in words is "two hundred twenty-five million, nine hundred fourteen thousand, five hundred twenty-one".