51306011 has 4 divisors (see below), whose sum is σ = 51356712. Its totient is φ = 51255312.

The previous prime is 51306001. The next prime is 51306037. The reversal of 51306011 is 11060315.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51306011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51306001) 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, 23801 + ... + 25866.

It is an arithmetic number, because the mean of its divisors is an integer number (12839178).

Almost surely, 2^51306011 is an apocalyptic number.

51306011 is a deficient number, since it is larger than the sum of its proper divisors (50701).

51306011 is a wasteful number, since it uses less digits than its factorization.

51306011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50700.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 51306011 is about 7162.8214413037. The cubic root of 51306011 is about 371.5832109892.

Adding to 51306011 its reverse (11060315), we get a palindrome (62366326).

The spelling of 51306011 in words is "fifty-one million, three hundred six thousand, eleven".