65813005 has 16 divisors (see below), whose sum is σ = 84332160. Its totient is φ = 49186368.

The previous prime is 65812993. The next prime is 65813039. The reversal of 65813005 is 50031856.

It is a cyclic number.

It is not a de Polignac number, because 65813005 - 2²¹ = 63715853 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1710 + ... + 11599.

It is an arithmetic number, because the mean of its divisors is an integer number (5270760).

Almost surely, 2^65813005 is an apocalyptic number.

It is an amenable number.

65813005 is a deficient number, since it is larger than the sum of its proper divisors (18519155).

65813005 is a wasteful number, since it uses less digits than its factorization.

65813005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13380.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 65813005 is about 8112.5214945786. The cubic root of 65813005 is about 403.7419785810.

The spelling of 65813005 in words is "sixty-five million, eight hundred thirteen thousand, five".