9217255 has 8 divisors (see below), whose sum is σ = 11359872. Its totient is φ = 7174368.

The previous prime is 9217237. The next prime is 9217277. The reversal of 9217255 is 5527129.

9217255 = 481² + 482² + ... + 517².

9217255 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9217255 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 24727 + ... + 25096.

It is an arithmetic number, because the mean of its divisors is an integer number (1419984).

Almost surely, 2^9217255 is an apocalyptic number.

9217255 is a deficient number, since it is larger than the sum of its proper divisors (2142617).

9217255 is a wasteful number, since it uses less digits than its factorization.

9217255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49865.

The product of its digits is 6300, while the sum is 31.

The square root of 9217255 is about 3035.9932476868. The cubic root of 9217255 is about 209.6688279753.

The spelling of 9217255 in words is "nine million, two hundred seventeen thousand, two hundred fifty-five".