51756260447 has 2 divisors, whose sum is σ = 51756260448. Its totient is φ = 51756260446.

The previous prime is 51756260443. The next prime is 51756260467. The reversal of 51756260447 is 74406265715.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51756260447 - 2² = 51756260443 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51756260443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25878130223 + 25878130224.

It is an arithmetic number, because the mean of its divisors is an integer number (25878130224).

Almost surely, 2^51756260447 is an apocalyptic number.

51756260447 is a deficient number, since it is larger than the sum of its proper divisors (1).

51756260447 is an equidigital number, since it uses as much as digits as its factorization.

51756260447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1411200, while the sum is 47.

The spelling of 51756260447 in words is "fifty-one billion, seven hundred fifty-six million, two hundred sixty thousand, four hundred forty-seven".