225745215 has 8 divisors (see below), whose sum is σ = 361192368. Its totient is φ = 120397440.

The previous prime is 225745181. The next prime is 225745217. The reversal of 225745215 is 512547522.

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

It is not a de Polignac number, because 225745215 - 2⁷ = 225745087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225745217) 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, 7524826 + ... + 7524855.

It is an arithmetic number, because the mean of its divisors is an integer number (45149046).

Almost surely, 2^225745215 is an apocalyptic number.

225745215 is a deficient number, since it is larger than the sum of its proper divisors (135447153).

225745215 is a wasteful number, since it uses less digits than its factorization.

225745215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15049689.

The product of its digits is 28000, while the sum is 33.

The square root of 225745215 is about 15024.8199656435. The cubic root of 225745215 is about 608.8909481964.

The spelling of 225745215 in words is "two hundred twenty-five million, seven hundred forty-five thousand, two hundred fifteen".