51574750064587 has 2 divisors, whose sum is σ = 51574750064588. Its totient is φ = 51574750064586.

The previous prime is 51574750064573. The next prime is 51574750064681. The reversal of 51574750064587 is 78546005747515.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51574750064587 is a prime.

It is not a weakly prime, because it can be changed into another prime (51574750094587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25787375032293 + 25787375032294.

It is an arithmetic number, because the mean of its divisors is an integer number (25787375032294).

Almost surely, 2^{51574750064587} is an apocalyptic number.

51574750064587 is a deficient number, since it is larger than the sum of its proper divisors (1).

51574750064587 is an equidigital number, since it uses as much as digits as its factorization.

51574750064587 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 164640000, while the sum is 64.

The spelling of 51574750064587 in words is "fifty-one trillion, five hundred seventy-four billion, seven hundred fifty million, sixty-four thousand, five hundred eighty-seven".