225017305 has 8 divisors (see below), whose sum is σ = 271152000. Its totient is φ = 179259696.

The previous prime is 225017297. The next prime is 225017329. The reversal of 225017305 is 503710522.

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 225017305 - 2³ = 225017297 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 225017305.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92955 + ... + 95344.

It is an arithmetic number, because the mean of its divisors is an integer number (33894000).

Almost surely, 2^225017305 is an apocalyptic number.

It is an amenable number.

225017305 is a deficient number, since it is larger than the sum of its proper divisors (46134695).

225017305 is a wasteful number, since it uses less digits than its factorization.

225017305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188543.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 225017305 is about 15000.5768222425. The cubic root of 225017305 is about 608.2357921214.

Adding to 225017305 its reverse (503710522), we get a palindrome (728727827).

The spelling of 225017305 in words is "two hundred twenty-five million, seventeen thousand, three hundred five".