65332215 has 48 divisors (see below), whose sum is σ = 126191520. Its totient is φ = 31046400.

The previous prime is 65332171. The next prime is 65332217. The reversal of 65332215 is 51223356.

65332215 is a `hidden beast` number, since 653 + 3 + 2 + 2 + 1 + 5 = 666.

It is not a de Polignac number, because 65332215 - 2⁶ = 65332151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65332217) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15040 + ... + 18890.

It is an arithmetic number, because the mean of its divisors is an integer number (2628990).

Almost surely, 2^65332215 is an apocalyptic number.

65332215 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

65332215 is a deficient number, since it is larger than the sum of its proper divisors (60859305).

65332215 is a wasteful number, since it uses less digits than its factorization.

65332215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3904 (or 3901 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 65332215 is about 8082.8345894247. The cubic root of 65332215 is about 402.7564097987.

The spelling of 65332215 in words is "sixty-five million, three hundred thirty-two thousand, two hundred fifteen".