65725115 has 16 divisors (see below), whose sum is σ = 82805760. Its totient is φ = 50014560.

The previous prime is 65725097. The next prime is 65725151. The reversal of 65725115 is 51152756.

65725115 = T₄₉₀ + T₄₉₁ + ... + T₇₉₉.

It is not a de Polignac number, because 65725115 - 2⁸ = 65724859 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5552 + ... + 12738.

It is an arithmetic number, because the mean of its divisors is an integer number (5175360).

Almost surely, 2^65725115 is an apocalyptic number.

65725115 is a deficient number, since it is larger than the sum of its proper divisors (17080645).

65725115 is a wasteful number, since it uses less digits than its factorization.

65725115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7282.

The product of its digits is 10500, while the sum is 32.

The square root of 65725115 is about 8107.1027500581. The cubic root of 65725115 is about 403.5621727289.

The spelling of 65725115 in words is "sixty-five million, seven hundred twenty-five thousand, one hundred fifteen".