51370829 has 2 divisors, whose sum is σ = 51370830. Its totient is φ = 51370828.

The previous prime is 51370819. The next prime is 51370849. The reversal of 51370829 is 92807315.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46648900 + 4721929 = 6830^2 + 2173^2 .

It is a cyclic number.

It is not a de Polignac number, because 51370829 - 2²⁰ = 50322253 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 (51370819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25685414 + 25685415.

It is an arithmetic number, because the mean of its divisors is an integer number (25685415).

Almost surely, 2^51370829 is an apocalyptic number.

It is an amenable number.

51370829 is a deficient number, since it is larger than the sum of its proper divisors (1).

51370829 is an equidigital number, since it uses as much as digits as its factorization.

51370829 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 51370829 is about 7167.3446268475. The cubic root of 51370829 is about 371.7396263515.

The spelling of 51370829 in words is "fifty-one million, three hundred seventy thousand, eight hundred twenty-nine".