65006506 has 8 divisors (see below), whose sum is σ = 97556004. Its totient is φ = 32487840.

The previous prime is 65006489. The next prime is 65006509. The reversal of 65006506 is 60560056.

It can be written as a sum of positive squares in 2 ways, for example, as 58293225 + 6713281 = 7635^2 + 2591^2 .

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

It is not an unprimeable number, because it can be changed into a prime (65006509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1405 + ... + 11488.

Almost surely, 2^65006506 is an apocalyptic number.

65006506 is a deficient number, since it is larger than the sum of its proper divisors (32549498).

65006506 is a wasteful number, since it uses less digits than its factorization.

65006506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15416.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 65006506 is about 8062.6612231942. The cubic root of 65006506 is about 402.0859902020.

The spelling of 65006506 in words is "sixty-five million, six thousand, five hundred six".