65725417 has 4 divisors (see below), whose sum is σ = 69591636. Its totient is φ = 61859200.

The previous prime is 65725409. The next prime is 65725441. The reversal of 65725417 is 71452756.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 56791296 + 8934121 = 7536^2 + 2989^2 .

It is a cyclic number.

It is not a de Polignac number, because 65725417 - 2³ = 65725409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65725817) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1933084 + ... + 1933117.

It is an arithmetic number, because the mean of its divisors is an integer number (17397909).

Almost surely, 2^65725417 is an apocalyptic number.

It is an amenable number.

65725417 is a deficient number, since it is larger than the sum of its proper divisors (3866219).

65725417 is a wasteful number, since it uses less digits than its factorization.

65725417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3866218.

The product of its digits is 58800, while the sum is 37.

The square root of 65725417 is about 8107.1213756795. The cubic root of 65725417 is about 403.5627908365.

The spelling of 65725417 in words is "sixty-five million, seven hundred twenty-five thousand, four hundred seventeen".