65808051 has 4 divisors (see below), whose sum is σ = 87744072. Its totient is φ = 43872032.

The previous prime is 65808049. The next prime is 65808053. The reversal of 65808051 is 15080856.

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

It is an interprime number because it is at equal distance from previous prime (65808049) and next prime (65808053).

It is a cyclic number.

It is not a de Polignac number, because 65808051 - 2¹ = 65808049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65808053) 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, 10968006 + ... + 10968011.

It is an arithmetic number, because the mean of its divisors is an integer number (21936018).

Almost surely, 2^65808051 is an apocalyptic number.

65808051 is a deficient number, since it is larger than the sum of its proper divisors (21936021).

65808051 is a wasteful number, since it uses less digits than its factorization.

65808051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21936020.

The product of its (nonzero) digits is 9600, while the sum is 33.

The square root of 65808051 is about 8112.2161583626. The cubic root of 65808051 is about 403.7318479188.

The spelling of 65808051 in words is "sixty-five million, eight hundred eight thousand, fifty-one".