65272319 has 4 divisors (see below), whose sum is σ = 74596944. Its totient is φ = 55947696.

The previous prime is 65272313. The next prime is 65272327. The reversal of 65272319 is 91327256.

65272319 = 1753² + 1754² + ... + 1773².

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

It is not a de Polignac number, because 65272319 - 2²⁴ = 48495103 is a prime.

It is a super-2 number, since 2×65272319² = 8520951255275522, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65272313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4662302 + ... + 4662315.

It is an arithmetic number, because the mean of its divisors is an integer number (18649236).

Almost surely, 2^65272319 is an apocalyptic number.

65272319 is a deficient number, since it is larger than the sum of its proper divisors (9324625).

65272319 is an equidigital number, since it uses as much as digits as its factorization.

65272319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9324624.

The product of its digits is 22680, while the sum is 35.

The square root of 65272319 is about 8079.1286040018. The cubic root of 65272319 is about 402.6332909885.

The spelling of 65272319 in words is "sixty-five million, two hundred seventy-two thousand, three hundred nineteen".