51323743 has 2 divisors, whose sum is σ = 51323744. Its totient is φ = 51323742.

The previous prime is 51323711. The next prime is 51323747. The reversal of 51323743 is 34732315.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51323743 - 2⁵ = 51323711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51323747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25661871 + 25661872.

It is an arithmetic number, because the mean of its divisors is an integer number (25661872).

Almost surely, 2^51323743 is an apocalyptic number.

51323743 is a deficient number, since it is larger than the sum of its proper divisors (1).

51323743 is an equidigital number, since it uses as much as digits as its factorization.

51323743 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560, while the sum is 28.

The square root of 51323743 is about 7164.0591147756. The cubic root of 51323743 is about 371.6260139958.

The spelling of 51323743 in words is "fifty-one million, three hundred twenty-three thousand, seven hundred forty-three".