51166371 has 4 divisors (see below), whose sum is σ = 68221832. Its totient is φ = 34110912.

The previous prime is 51166369. The next prime is 51166391. The reversal of 51166371 is 17366115.

51166371 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 not a de Polignac number, because 51166371 - 2¹ = 51166369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51166351) 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, 8527726 + ... + 8527731.

It is an arithmetic number, because the mean of its divisors is an integer number (17055458).

Almost surely, 2^51166371 is an apocalyptic number.

51166371 is a deficient number, since it is larger than the sum of its proper divisors (17055461).

51166371 is a wasteful number, since it uses less digits than its factorization.

51166371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17055460.

The product of its digits is 3780, while the sum is 30.

The square root of 51166371 is about 7153.0672441967. The cubic root of 51166371 is about 371.2457909713.

The spelling of 51166371 in words is "fifty-one million, one hundred sixty-six thousand, three hundred seventy-one".