216010025 has 24 divisors (see below), whose sum is σ = 333948864. Its totient is φ = 134654400.

The previous prime is 216010021. The next prime is 216010057. The reversal of 216010025 is 520010612.

It is not a de Polignac number, because 216010025 - 2² = 216010021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 216009985 and 216010012.

It is not an unprimeable number, because it can be changed into a prime (216010021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54182 + ... + 58031.

It is an arithmetic number, because the mean of its divisors is an integer number (13914536).

Almost surely, 2^216010025 is an apocalyptic number.

216010025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

216010025 is a deficient number, since it is larger than the sum of its proper divisors (117938839).

216010025 is a wasteful number, since it uses less digits than its factorization.

216010025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112241 (or 112236 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 216010025 is about 14697.2795101679. The cubic root of 216010025 is about 600.0092822638.

Adding to 216010025 its reverse (520010612), we get a palindrome (736020637).

The spelling of 216010025 in words is "two hundred sixteen million, ten thousand, twenty-five".