51059369 has 2 divisors, whose sum is σ = 51059370. Its totient is φ = 51059368.

The previous prime is 51059363. The next prime is 51059417. The reversal of 51059369 is 96395015.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40896025 + 10163344 = 6395^2 + 3188^2 .

It is a cyclic number.

It is not a de Polignac number, because 51059369 - 2⁴ = 51059353 is a prime.

It is a super-2 number, since 2×51059369² = 5214118325356322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (51059363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25529684 + 25529685.

It is an arithmetic number, because the mean of its divisors is an integer number (25529685).

Almost surely, 2^51059369 is an apocalyptic number.

It is an amenable number.

51059369 is a deficient number, since it is larger than the sum of its proper divisors (1).

51059369 is an equidigital number, since it uses as much as digits as its factorization.

51059369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36450, while the sum is 38.

The square root of 51059369 is about 7145.5838809715. The cubic root of 51059369 is about 370.9868203192.

The spelling of 51059369 in words is "fifty-one million, fifty-nine thousand, three hundred sixty-nine".