51072829 has 2 divisors, whose sum is σ = 51072830. Its totient is φ = 51072828.

The previous prime is 51072823. The next prime is 51072851. The reversal of 51072829 is 92827015.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27772900 + 23299929 = 5270^2 + 4827^2 .

It is a cyclic number.

It is not a de Polignac number, because 51072829 - 2⁵ = 51072797 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51072794 and 51072803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51072823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25536414 + 25536415.

It is an arithmetic number, because the mean of its divisors is an integer number (25536415).

Almost surely, 2^51072829 is an apocalyptic number.

It is an amenable number.

51072829 is a deficient number, since it is larger than the sum of its proper divisors (1).

51072829 is an equidigital number, since it uses as much as digits as its factorization.

51072829 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 51072829 is about 7146.5256593676. The cubic root of 51072829 is about 371.0194166476.

The spelling of 51072829 in words is "fifty-one million, seventy-two thousand, eight hundred twenty-nine".