51705741 has 4 divisors (see below), whose sum is σ = 68940992. Its totient is φ = 34470492.

The previous prime is 51705739. The next prime is 51705743. The reversal of 51705741 is 14750715.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (51705739) and next prime (51705743).

It is not a de Polignac number, because 51705741 - 2¹ = 51705739 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51705699 and 51705708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51705743) 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, 8617621 + ... + 8617626.

It is an arithmetic number, because the mean of its divisors is an integer number (17235248).

Almost surely, 2^51705741 is an apocalyptic number.

It is an amenable number.

51705741 is a deficient number, since it is larger than the sum of its proper divisors (17235251).

51705741 is a wasteful number, since it uses less digits than its factorization.

51705741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17235250.

The product of its (nonzero) digits is 4900, while the sum is 30.

The square root of 51705741 is about 7190.6704138070. The cubic root of 51705741 is about 372.5457289625.

The spelling of 51705741 in words is "fifty-one million, seven hundred five thousand, seven hundred forty-one".