17240225 has 12 divisors (see below), whose sum is σ = 22308096. Its totient is φ = 13192080.

The previous prime is 17240221. The next prime is 17240263. The reversal of 17240225 is 52204271.

It is a happy number.

It is not a de Polignac number, because 17240225 - 2² = 17240221 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 17240225.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17240221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14417 + ... + 15566.

It is an arithmetic number, because the mean of its divisors is an integer number (1859008).

Almost surely, 2^17240225 is an apocalyptic number.

It is an amenable number.

17240225 is a deficient number, since it is larger than the sum of its proper divisors (5067871).

17240225 is a wasteful number, since it uses less digits than its factorization.

17240225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30016 (or 30011 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 17240225 is about 4152.1349929885. The cubic root of 17240225 is about 258.3336478202. Note that the first 3 decimals are identical.

Adding to 17240225 its reverse (52204271), we get a palindrome (69444496).

The spelling of 17240225 in words is "seventeen million, two hundred forty thousand, two hundred twenty-five".