217225088 has 16 divisors (see below), whose sum is σ = 432753360. Its totient is φ = 108612480.

The previous prime is 217225067. The next prime is 217225147. The reversal of 217225088 is 880522712.

217225088 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 848408 + ... + 848663.

It is an arithmetic number, because the mean of its divisors is an integer number (27047085).

Almost surely, 2^217225088 is an apocalyptic number.

It is an amenable number.

217225088 is a deficient number, since it is larger than the sum of its proper divisors (215528272).

217225088 is an equidigital number, since it uses as much as digits as its factorization.

217225088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1697085 (or 1697073 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 35.

The square root of 217225088 is about 14738.5578670371. The cubic root of 217225088 is about 601.1322029245.

The spelling of 217225088 in words is "two hundred seventeen million, two hundred twenty-five thousand, eighty-eight".