51098215733 has 2 divisors, whose sum is σ = 51098215734. Its totient is φ = 51098215732.

The previous prime is 51098215711. The next prime is 51098215739. The reversal of 51098215733 is 33751289015.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42868460209 + 8229755524 = 207047^2 + 90718^2 .

It is a cyclic number.

It is not a de Polignac number, because 51098215733 - 2⁶ = 51098215669 is a prime.

It is a super-2 number, since 2×51098215733² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51098215739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25549107866 + 25549107867.

It is an arithmetic number, because the mean of its divisors is an integer number (25549107867).

Almost surely, 2^51098215733 is an apocalyptic number.

It is an amenable number.

51098215733 is a deficient number, since it is larger than the sum of its proper divisors (1).

51098215733 is an equidigital number, since it uses as much as digits as its factorization.

51098215733 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 226800, while the sum is 44.

The spelling of 51098215733 in words is "fifty-one billion, ninety-eight million, two hundred fifteen thousand, seven hundred thirty-three".