51305759 has 2 divisors, whose sum is σ = 51305760. Its totient is φ = 51305758.

The previous prime is 51305747. The next prime is 51305773. The reversal of 51305759 is 95750315.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51305759 - 2⁴ = 51305743 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51305789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25652879 + 25652880.

It is an arithmetic number, because the mean of its divisors is an integer number (25652880).

Almost surely, 2^51305759 is an apocalyptic number.

51305759 is a deficient number, since it is larger than the sum of its proper divisors (1).

51305759 is an equidigital number, since it uses as much as digits as its factorization.

51305759 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23625, while the sum is 35.

The square root of 51305759 is about 7162.8038504485. The cubic root of 51305759 is about 371.5826026192.

The spelling of 51305759 in words is "fifty-one million, three hundred five thousand, seven hundred fifty-nine".