51020425259 has 2 divisors, whose sum is σ = 51020425260. Its totient is φ = 51020425258.

The previous prime is 51020425243. The next prime is 51020425273. The reversal of 51020425259 is 95252402015.

51020425259 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 51020425259 - 2⁴ = 51020425243 is a prime.

It is not a weakly prime, because it can be changed into another prime (51020425219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25510212629 + 25510212630.

It is an arithmetic number, because the mean of its divisors is an integer number (25510212630).

Almost surely, 2^51020425259 is an apocalyptic number.

51020425259 is a deficient number, since it is larger than the sum of its proper divisors (1).

51020425259 is an equidigital number, since it uses as much as digits as its factorization.

51020425259 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36000, while the sum is 35.

The spelling of 51020425259 in words is "fifty-one billion, twenty million, four hundred twenty-five thousand, two hundred fifty-nine".