216342325 has 12 divisors (see below), whose sum is σ = 272045088. Its totient is φ = 170634800.

The previous prime is 216342319. The next prime is 216342353. The reversal of 216342325 is 523243612.

It is not a de Polignac number, because 216342325 - 2²¹ = 214245173 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 216342293 and 216342302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59167 + ... + 62716.

It is an arithmetic number, because the mean of its divisors is an integer number (22670424).

Almost surely, 2^216342325 is an apocalyptic number.

216342325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

216342325 is a deficient number, since it is larger than the sum of its proper divisors (55702763).

216342325 is a wasteful number, since it uses less digits than its factorization.

216342325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121964 (or 121959 counting only the distinct ones).

The product of its digits is 8640, while the sum is 28.

The square root of 216342325 is about 14708.5799790462. The cubic root of 216342325 is about 600.3168002924.

Adding to 216342325 its reverse (523243612), we get a palindrome (739585937).

The spelling of 216342325 in words is "two hundred sixteen million, three hundred forty-two thousand, three hundred twenty-five".