51498094091 has 2 divisors, whose sum is σ = 51498094092. Its totient is φ = 51498094090.

The previous prime is 51498094031. The next prime is 51498094129. The reversal of 51498094091 is 19049089415.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51498094091 - 2⁶ = 51498094027 is a prime.

It is not a weakly prime, because it can be changed into another prime (51498094031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25749047045 + 25749047046.

It is an arithmetic number, because the mean of its divisors is an integer number (25749047046).

Almost surely, 2^51498094091 is an apocalyptic number.

51498094091 is a deficient number, since it is larger than the sum of its proper divisors (1).

51498094091 is an equidigital number, since it uses as much as digits as its factorization.

51498094091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 466560, while the sum is 50.

The spelling of 51498094091 in words is "fifty-one billion, four hundred ninety-eight million, ninety-four thousand, ninety-one".