65993051 has 4 divisors (see below), whose sum is σ = 66788232. Its totient is φ = 65197872.

The previous prime is 65993047. The next prime is 65993063. The reversal of 65993051 is 15039956.

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

It is a cyclic number.

It is not a de Polignac number, because 65993051 - 2² = 65993047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65992996 and 65993014.

It is not an unprimeable number, because it can be changed into a prime (65993351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 397466 + ... + 397631.

It is an arithmetic number, because the mean of its divisors is an integer number (16697058).

Almost surely, 2^65993051 is an apocalyptic number.

65993051 is a deficient number, since it is larger than the sum of its proper divisors (795181).

65993051 is an equidigital number, since it uses as much as digits as its factorization.

65993051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795180.

The product of its (nonzero) digits is 36450, while the sum is 38.

The square root of 65993051 is about 8123.6107119925. The cubic root of 65993051 is about 404.1098184448.

The spelling of 65993051 in words is "sixty-five million, nine hundred ninety-three thousand, fifty-one".