51543733 has 2 divisors, whose sum is σ = 51543734. Its totient is φ = 51543732.

The previous prime is 51543691. The next prime is 51543749. The reversal of 51543733 is 33734515.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51022449 + 521284 = 7143^2 + 722^2 .

It is a cyclic number.

It is not a de Polignac number, because 51543733 - 2⁹ = 51543221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51543695 and 51543704.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51543773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25771866 + 25771867.

It is an arithmetic number, because the mean of its divisors is an integer number (25771867).

Almost surely, 2^51543733 is an apocalyptic number.

It is an amenable number.

51543733 is a deficient number, since it is larger than the sum of its proper divisors (1).

51543733 is an equidigital number, since it uses as much as digits as its factorization.

51543733 is an odious number, because the sum of its binary digits is odd.

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

The square root of 51543733 is about 7179.3964230985. The cubic root of 51543733 is about 372.1562265346.

The spelling of 51543733 in words is "fifty-one million, five hundred forty-three thousand, seven hundred thirty-three".