51544208851 has 2 divisors, whose sum is σ = 51544208852. Its totient is φ = 51544208850.

The previous prime is 51544208839. The next prime is 51544208867. The reversal of 51544208851 is 15880244515.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51544208851 - 2¹¹ = 51544206803 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51544208798 and 51544208807.

It is not a weakly prime, because it can be changed into another prime (51544206851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25772104425 + 25772104426.

It is an arithmetic number, because the mean of its divisors is an integer number (25772104426).

Almost surely, 2^51544208851 is an apocalyptic number.

51544208851 is a deficient number, since it is larger than the sum of its proper divisors (1).

51544208851 is an equidigital number, since it uses as much as digits as its factorization.

51544208851 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 256000, while the sum is 43.

The spelling of 51544208851 in words is "fifty-one billion, five hundred forty-four million, two hundred eight thousand, eight hundred fifty-one".