51343753 has 4 divisors (see below), whose sum is σ = 52731460. Its totient is φ = 49956048.

The previous prime is 51343741. The next prime is 51343771. The reversal of 51343753 is 35734315.

51343753 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 can be written as a sum of positive squares in 2 ways, for example, as 47375689 + 3968064 = 6883^2 + 1992^2 .

It is a cyclic number.

It is not a de Polignac number, because 51343753 - 2⁹ = 51343241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51343793) 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, 693798 + ... + 693871.

It is an arithmetic number, because the mean of its divisors is an integer number (13182865).

Almost surely, 2^51343753 is an apocalyptic number.

It is an amenable number.

51343753 is a deficient number, since it is larger than the sum of its proper divisors (1387707).

51343753 is a wasteful number, since it uses less digits than its factorization.

51343753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1387706.

The product of its digits is 18900, while the sum is 31.

The square root of 51343753 is about 7165.4555333210. The cubic root of 51343753 is about 371.6743039938.

The spelling of 51343753 in words is "fifty-one million, three hundred forty-three thousand, seven hundred fifty-three".