51003339889 has 2 divisors, whose sum is σ = 51003339890. Its totient is φ = 51003339888.

The previous prime is 51003339847. The next prime is 51003339901. The reversal of 51003339889 is 98893330015.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27991966864 + 23011373025 = 167308^2 + 151695^2 .

It is a cyclic number.

It is not a de Polignac number, because 51003339889 - 2²⁵ = 50969785457 is a prime.

It is not a weakly prime, because it can be changed into another prime (51003349889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25501669944 + 25501669945.

It is an arithmetic number, because the mean of its divisors is an integer number (25501669945).

Almost surely, 2^51003339889 is an apocalyptic number.

It is an amenable number.

51003339889 is a deficient number, since it is larger than the sum of its proper divisors (1).

51003339889 is an equidigital number, since it uses as much as digits as its factorization.

51003339889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 699840, while the sum is 49.

The spelling of 51003339889 in words is "fifty-one billion, three million, three hundred thirty-nine thousand, eight hundred eighty-nine".