51756741 has 24 divisors (see below), whose sum is σ = 79027520. Its totient is φ = 32550336.

The previous prime is 51756713. The next prime is 51756751. The reversal of 51756741 is 14765715.

51756741 is a `hidden beast` number, since 51 + 7 + 567 + 41 = 666.

It is not a de Polignac number, because 51756741 - 2⁵ = 51756709 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 51756696 and 51756705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51756751) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53040 + ... + 54006.

Almost surely, 2^51756741 is an apocalyptic number.

It is an amenable number.

51756741 is a deficient number, since it is larger than the sum of its proper divisors (27270779).

51756741 is a wasteful number, since it uses less digits than its factorization.

51756741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1305 (or 1302 counting only the distinct ones).

The product of its digits is 29400, while the sum is 36.

The square root of 51756741 is about 7194.2158016006. The cubic root of 51756741 is about 372.6681756412.

The spelling of 51756741 in words is "fifty-one million, seven hundred fifty-six thousand, seven hundred forty-one".