216753625 has 16 divisors (see below), whose sum is σ = 295102080. Its totient is φ = 157638000.

The previous prime is 216753619. The next prime is 216753629. The reversal of 216753625 is 526357612.

It is not a de Polignac number, because 216753625 - 2³ = 216753617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (216753629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77445 + ... + 80194.

It is an arithmetic number, because the mean of its divisors is an integer number (18443880).

Almost surely, 2^216753625 is an apocalyptic number.

216753625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

216753625 is a deficient number, since it is larger than the sum of its proper divisors (78348455).

216753625 is a wasteful number, since it uses less digits than its factorization.

216753625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157665 (or 157655 counting only the distinct ones).

The product of its digits is 75600, while the sum is 37.

The square root of 216753625 is about 14722.5549752752. The cubic root of 216753625 is about 600.6969909518.

The spelling of 216753625 in words is "two hundred sixteen million, seven hundred fifty-three thousand, six hundred twenty-five".