216295625 has 40 divisors (see below), whose sum is σ = 332743488. Its totient is φ = 136872000.

The previous prime is 216295609. The next prime is 216295627. The reversal of 216295625 is 526592612.

It is not a de Polignac number, because 216295625 - 2⁴ = 216295609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (216295627) by changing a digit.

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 in 39 ways as a sum of consecutive naturals, for example, 54974 + ... + 58776.

Almost surely, 2^216295625 is an apocalyptic number.

216295625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

216295625 is a deficient number, since it is larger than the sum of its proper divisors (116447863).

216295625 is an equidigital number, since it uses as much as digits as its factorization.

216295625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3843 (or 3828 counting only the distinct ones).

The product of its digits is 64800, while the sum is 38.

The square root of 216295625 is about 14706.9923845768. The cubic root of 216295625 is about 600.2736020694.

The spelling of 216295625 in words is "two hundred sixteen million, two hundred ninety-five thousand, six hundred twenty-five".