65724253 has 16 divisors (see below), whose sum is σ = 78031360. Its totient is φ = 54187056.

The previous prime is 65724233. The next prime is 65724311. The reversal of 65724253 is 35242756.

It is not a de Polignac number, because 65724253 - 2⁵ = 65724221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65724233) 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 15 ways as a sum of consecutive naturals, for example, 18538 + ... + 21796.

It is an arithmetic number, because the mean of its divisors is an integer number (4876960).

Almost surely, 2^65724253 is an apocalyptic number.

It is an amenable number.

65724253 is a deficient number, since it is larger than the sum of its proper divisors (12307107).

65724253 is a wasteful number, since it uses less digits than its factorization.

65724253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3376.

The product of its digits is 50400, while the sum is 34.

The square root of 65724253 is about 8107.0495866252. The cubic root of 65724253 is about 403.5604084509.

The spelling of 65724253 in words is "sixty-five million, seven hundred twenty-four thousand, two hundred fifty-three".