65273905 has 8 divisors (see below), whose sum is σ = 78701184. Its totient is φ = 51970800.

The previous prime is 65273903. The next prime is 65273909. The reversal of 65273905 is 50937256.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 65273905 - 2¹ = 65273903 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65273903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29881 + ... + 31990.

It is an arithmetic number, because the mean of its divisors is an integer number (9837648).

Almost surely, 2^65273905 is an apocalyptic number.

It is an amenable number.

65273905 is a deficient number, since it is larger than the sum of its proper divisors (13427279).

65273905 is a wasteful number, since it uses less digits than its factorization.

65273905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62087.

The product of its (nonzero) digits is 56700, while the sum is 37.

The square root of 65273905 is about 8079.2267575555. The cubic root of 65273905 is about 402.6365520504.

The spelling of 65273905 in words is "sixty-five million, two hundred seventy-three thousand, nine hundred five".