51845429 has 2 divisors, whose sum is σ = 51845430. Its totient is φ = 51845428.

The previous prime is 51845413. The next prime is 51845441. The reversal of 51845429 is 92454815.

51845429 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51811204 + 34225 = 7198^2 + 185^2 .

It is a cyclic number.

It is not a de Polignac number, because 51845429 - 2⁴ = 51845413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51845392 and 51845401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51845449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25922714 + 25922715.

It is an arithmetic number, because the mean of its divisors is an integer number (25922715).

Almost surely, 2^51845429 is an apocalyptic number.

It is an amenable number.

51845429 is a deficient number, since it is larger than the sum of its proper divisors (1).

51845429 is an equidigital number, since it uses as much as digits as its factorization.

51845429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 57600, while the sum is 38.

The square root of 51845429 is about 7200.3770040186. The cubic root of 51845429 is about 372.8809165913.

The spelling of 51845429 in words is "fifty-one million, eight hundred forty-five thousand, four hundred twenty-nine".