51683071 has 4 divisors (see below), whose sum is σ = 56381544. Its totient is φ = 46984600.

The previous prime is 51683053. The next prime is 51683081. The reversal of 51683071 is 17038615.

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

It is a cyclic number.

It is not a de Polignac number, because 51683071 - 2⁵ = 51683039 is a prime.

It is a super-2 number, since 2×51683071² = 5342279655982082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51683011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2349220 + ... + 2349241.

It is an arithmetic number, because the mean of its divisors is an integer number (14095386).

Almost surely, 2^51683071 is an apocalyptic number.

51683071 is a deficient number, since it is larger than the sum of its proper divisors (4698473).

51683071 is a wasteful number, since it uses less digits than its factorization.

51683071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4698472.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 51683071 is about 7189.0938928352. The cubic root of 51683071 is about 372.4912743628.

The spelling of 51683071 in words is "fifty-one million, six hundred eighty-three thousand, seventy-one".