51711347 has 4 divisors (see below), whose sum is σ = 52559136. Its totient is φ = 50863560.

The previous prime is 51711329. The next prime is 51711349. The reversal of 51711347 is 74311715.

51711347 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-51711347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51711349) 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, 423803 + ... + 423924.

It is an arithmetic number, because the mean of its divisors is an integer number (13139784).

Almost surely, 2^51711347 is an apocalyptic number.

51711347 is a deficient number, since it is larger than the sum of its proper divisors (847789).

51711347 is an equidigital number, since it uses as much as digits as its factorization.

51711347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847788.

The product of its digits is 2940, while the sum is 29.

The square root of 51711347 is about 7191.0602139045. The cubic root of 51711347 is about 372.5591924312.

The spelling of 51711347 in words is "fifty-one million, seven hundred eleven thousand, three hundred forty-seven".