65551065 has 32 divisors (see below), whose sum is σ = 112959360. Its totient is φ = 32338944.

The previous prime is 65551061. The next prime is 65551091. The reversal of 65551065 is 56015556.

It is not a de Polignac number, because 65551065 - 2² = 65551061 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65551061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12867 + ... + 17223.

It is an arithmetic number, because the mean of its divisors is an integer number (3529980).

Almost surely, 2^65551065 is an apocalyptic number.

It is an amenable number.

65551065 is a deficient number, since it is larger than the sum of its proper divisors (47408295).

65551065 is a wasteful number, since it uses less digits than its factorization.

65551065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4441.

The product of its (nonzero) digits is 22500, while the sum is 33.

The square root of 65551065 is about 8096.3612197085. The cubic root of 65551065 is about 403.2056266832.

The spelling of 65551065 in words is "sixty-five million, five hundred fifty-one thousand, sixty-five".