51346039 has 2 divisors, whose sum is σ = 51346040. Its totient is φ = 51346038.

The previous prime is 51346021. The next prime is 51346049. The reversal of 51346039 is 93064315.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51346039 - 2¹¹ = 51343991 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51346039.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51346019) 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, 25673019 + 25673020.

It is an arithmetic number, because the mean of its divisors is an integer number (25673020).

Almost surely, 2^51346039 is an apocalyptic number.

51346039 is a deficient number, since it is larger than the sum of its proper divisors (1).

51346039 is an equidigital number, since it uses as much as digits as its factorization.

51346039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 51346039 is about 7165.6150468749. The cubic root of 51346039 is about 371.6798199836.

The spelling of 51346039 in words is "fifty-one million, three hundred forty-six thousand, thirty-nine".