217097325 has 72 divisors (see below), whose sum is σ = 419184480. Its totient is φ = 107049600.

The previous prime is 217097297. The next prime is 217097341. The reversal of 217097325 is 523790712.

217097325 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 217097325 - 2¹⁰ = 217096301 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 217097325.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 183235 + ... + 184415.

Almost surely, 2^217097325 is an apocalyptic number.

217097325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

217097325 is a deficient number, since it is larger than the sum of its proper divisors (202087155).

217097325 is a wasteful number, since it uses less digits than its factorization.

217097325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1259 (or 1251 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The square root of 217097325 is about 14734.2229180911. Note that the first 3 decimals coincide. The cubic root of 217097325 is about 601.0143259385.

The spelling of 217097325 in words is "two hundred seventeen million, ninety-seven thousand, three hundred twenty-five".