51362789 has 2 divisors, whose sum is σ = 51362790. Its totient is φ = 51362788.

The previous prime is 51362747. The next prime is 51362813. The reversal of 51362789 is 98726315.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40538689 + 10824100 = 6367^2 + 3290^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51362789 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 (51362089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25681394 + 25681395.

It is an arithmetic number, because the mean of its divisors is an integer number (25681395).

Almost surely, 2^51362789 is an apocalyptic number.

It is an amenable number.

51362789 is a deficient number, since it is larger than the sum of its proper divisors (1).

51362789 is an equidigital number, since it uses as much as digits as its factorization.

51362789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 41.

The square root of 51362789 is about 7166.7837277261. The cubic root of 51362789 is about 371.7202318002.

The spelling of 51362789 in words is "fifty-one million, three hundred sixty-two thousand, seven hundred eighty-nine".