51065499 has 8 divisors (see below), whose sum is σ = 68761872. Its totient is φ = 33706400.

The previous prime is 51065489. The next prime is 51065527. The reversal of 51065499 is 99456015.

51065499 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51065499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51065449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83964 + ... + 84569.

It is an arithmetic number, because the mean of its divisors is an integer number (8595234).

Almost surely, 2^51065499 is an apocalyptic number.

51065499 is a deficient number, since it is larger than the sum of its proper divisors (17696373).

51065499 is a wasteful number, since it uses less digits than its factorization.

51065499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168637.

The product of its (nonzero) digits is 48600, while the sum is 39.

The square root of 51065499 is about 7146.0128043546. The cubic root of 51065499 is about 371.0016661627.

The spelling of 51065499 in words is "fifty-one million, sixty-five thousand, four hundred ninety-nine".