51871743 has 108 divisors (see below), whose sum is σ = 103734072. Its totient is φ = 24675840.

The previous prime is 51871733. The next prime is 51871751. The reversal of 51871743 is 34717815.

51871743 is a `hidden beast` number, since 518 + 71 + 74 + 3 = 666.

It is not a de Polignac number, because 51871743 - 2⁸ = 51871487 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51871698 and 51871707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51871733) by changing a digit.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 1401921 + ... + 1401957.

Almost surely, 2^51871743 is an apocalyptic number.

51871743 is a deficient number, since it is larger than the sum of its proper divisors (51862329).

51871743 is a wasteful number, since it uses less digits than its factorization.

51871743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102 (or 75 counting only the distinct ones).

The product of its digits is 23520, while the sum is 36.

The square root of 51871743 is about 7202.2040376540. The cubic root of 51871743 is about 372.9439908043.

The spelling of 51871743 in words is "fifty-one million, eight hundred seventy-one thousand, seven hundred forty-three".