65832505 has 8 divisors (see below), whose sum is σ = 79107912. Its totient is φ = 52593408.

The previous prime is 65832491. The next prime is 65832539. The reversal of 65832505 is 50523856.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3485689 + 62346816 = 1867^2 + 7896^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65832505 - 2¹⁵ = 65799737 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4912 + ... + 12481.

It is an arithmetic number, because the mean of its divisors is an integer number (9888489).

Almost surely, 2^65832505 is an apocalyptic number.

It is an amenable number.

65832505 is a deficient number, since it is larger than the sum of its proper divisors (13275407).

65832505 is a wasteful number, since it uses less digits than its factorization.

65832505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18155.

The product of its (nonzero) digits is 36000, while the sum is 34.

The square root of 65832505 is about 8113.7232513810. The cubic root of 65832505 is about 403.7818500883.

The spelling of 65832505 in words is "sixty-five million, eight hundred thirty-two thousand, five hundred five".