51611107 has 4 divisors (see below), whose sum is σ = 52338096. Its totient is φ = 50884120.

The previous prime is 51611093. The next prime is 51611141. The reversal of 51611107 is 70111615.

51611107 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-51611107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51611177) 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 3 ways as a sum of consecutive naturals, for example, 363388 + ... + 363529.

It is an arithmetic number, because the mean of its divisors is an integer number (13084524).

Almost surely, 2^51611107 is an apocalyptic number.

51611107 is a deficient number, since it is larger than the sum of its proper divisors (726989).

51611107 is an equidigital number, since it uses as much as digits as its factorization.

51611107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726988.

The product of its (nonzero) digits is 210, while the sum is 22.

The square root of 51611107 is about 7184.0870679579. The cubic root of 51611107 is about 372.3183072590.

The spelling of 51611107 in words is "fifty-one million, six hundred eleven thousand, one hundred seven".