51349757 has 2 divisors, whose sum is σ = 51349758. Its totient is φ = 51349756.

The previous prime is 51349751. The next prime is 51349759. The reversal of 51349757 is 75794315.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36711481 + 14638276 = 6059^2 + 3826^2 .

It is a cyclic number.

It is not a de Polignac number, because 51349757 - 2¹⁶ = 51284221 is a prime.

Together with 51349759, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51349751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25674878 + 25674879.

It is an arithmetic number, because the mean of its divisors is an integer number (25674879).

Almost surely, 2^51349757 is an apocalyptic number.

It is an amenable number.

51349757 is a deficient number, since it is larger than the sum of its proper divisors (1).

51349757 is an equidigital number, since it uses as much as digits as its factorization.

51349757 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 132300, while the sum is 41.

The square root of 51349757 is about 7165.8744755961. The cubic root of 51349757 is about 371.6887909593.

The spelling of 51349757 in words is "fifty-one million, three hundred forty-nine thousand, seven hundred fifty-seven".