51182474951 has 2 divisors, whose sum is σ = 51182474952. Its totient is φ = 51182474950.

The previous prime is 51182474939. The next prime is 51182474971. The reversal of 51182474951 is 15947428115.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51182474951 - 2³⁰ = 50108733127 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51182474896 and 51182474905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51182474971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25591237475 + 25591237476.

It is an arithmetic number, because the mean of its divisors is an integer number (25591237476).

Almost surely, 2^51182474951 is an apocalyptic number.

51182474951 is a deficient number, since it is larger than the sum of its proper divisors (1).

51182474951 is an equidigital number, since it uses as much as digits as its factorization.

51182474951 is an evil number, because the sum of its binary digits is even.

The product of its digits is 403200, while the sum is 47.

The spelling of 51182474951 in words is "fifty-one billion, one hundred eighty-two million, four hundred seventy-four thousand, nine hundred fifty-one".