51012477563 has 2 divisors, whose sum is σ = 51012477564. Its totient is φ = 51012477562.

The previous prime is 51012477511. The next prime is 51012477601. The reversal of 51012477563 is 36577421015.

51012477563 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51012477563 - 2²⁰ = 51011428987 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51012477563.

It is not a weakly prime, because it can be changed into another prime (51012479563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25506238781 + 25506238782.

It is an arithmetic number, because the mean of its divisors is an integer number (25506238782).

Almost surely, 2^51012477563 is an apocalyptic number.

51012477563 is a deficient number, since it is larger than the sum of its proper divisors (1).

51012477563 is an equidigital number, since it uses as much as digits as its factorization.

51012477563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 176400, while the sum is 41.

Adding to 51012477563 its reverse (36577421015), we get a palindrome (87589898578).

The spelling of 51012477563 in words is "fifty-one billion, twelve million, four hundred seventy-seven thousand, five hundred sixty-three".