51360539 has 2 divisors, whose sum is σ = 51360540. Its totient is φ = 51360538.

The previous prime is 51360527. The next prime is 51360559. The reversal of 51360539 is 93506315.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51360539 - 2⁴ = 51360523 is a prime.

It is not a weakly prime, because it can be changed into another prime (51360559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25680269 + 25680270.

It is an arithmetic number, because the mean of its divisors is an integer number (25680270).

Almost surely, 2^51360539 is an apocalyptic number.

51360539 is a deficient number, since it is larger than the sum of its proper divisors (1).

51360539 is an equidigital number, since it uses as much as digits as its factorization.

51360539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12150, while the sum is 32.

The square root of 51360539 is about 7166.6267518268. The cubic root of 51360539 is about 371.7148038581.

The spelling of 51360539 in words is "fifty-one million, three hundred sixty thousand, five hundred thirty-nine".