51030569 has 2 divisors, whose sum is σ = 51030570. Its totient is φ = 51030568.

The previous prime is 51030533. The next prime is 51030593. The reversal of 51030569 is 96503015.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34668544 + 16362025 = 5888^2 + 4045^2 .

It is a cyclic number.

It is not a de Polignac number, because 51030569 - 2⁸ = 51030313 is a prime.

It is a super-2 number, since 2×51030569² = 5208237944927522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (51030509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25515284 + 25515285.

It is an arithmetic number, because the mean of its divisors is an integer number (25515285).

Almost surely, 2^51030569 is an apocalyptic number.

It is an amenable number.

51030569 is a deficient number, since it is larger than the sum of its proper divisors (1).

51030569 is an equidigital number, since it uses as much as digits as its factorization.

51030569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4050, while the sum is 29.

The square root of 51030569 is about 7143.5683660199. The cubic root of 51030569 is about 370.9170555851.

The spelling of 51030569 in words is "fifty-one million, thirty thousand, five hundred sixty-nine".