51266255903 has 2 divisors, whose sum is σ = 51266255904. Its totient is φ = 51266255902.

The previous prime is 51266255897. The next prime is 51266256031. The reversal of 51266255903 is 30955266215.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51266255903 - 2⁸ = 51266255647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51260255903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25633127951 + 25633127952.

It is an arithmetic number, because the mean of its divisors is an integer number (25633127952).

Almost surely, 2^51266255903 is an apocalyptic number.

51266255903 is a deficient number, since it is larger than the sum of its proper divisors (1).

51266255903 is an equidigital number, since it uses as much as digits as its factorization.

51266255903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486000, while the sum is 44.

The spelling of 51266255903 in words is "fifty-one billion, two hundred sixty-six million, two hundred fifty-five thousand, nine hundred three".