65732506 has 16 divisors (see below), whose sum is σ = 119313216. Its totient is φ = 26513856.

The previous prime is 65732501. The next prime is 65732507. The reversal of 65732506 is 60523756.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (65732501) 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 7 ways as a sum of consecutive naturals, for example, 137856 + ... + 138331.

It is an arithmetic number, because the mean of its divisors is an integer number (7457076).

Almost surely, 2^65732506 is an apocalyptic number.

65732506 is a deficient number, since it is larger than the sum of its proper divisors (53580710).

65732506 is a wasteful number, since it uses less digits than its factorization.

65732506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276213.

The product of its (nonzero) digits is 37800, while the sum is 34.

The square root of 65732506 is about 8107.5585720980. The cubic root of 65732506 is about 403.5772994488.

The spelling of 65732506 in words is "sixty-five million, seven hundred thirty-two thousand, five hundred six".