51253117 has 2 divisors, whose sum is σ = 51253118. Its totient is φ = 51253116.

The previous prime is 51253099. The next prime is 51253133. The reversal of 51253117 is 71135215.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50851161 + 401956 = 7131^2 + 634^2 .

It is a cyclic number.

It is not a de Polignac number, because 51253117 - 2⁷ = 51252989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51253091 and 51253100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51253187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25626558 + 25626559.

It is an arithmetic number, because the mean of its divisors is an integer number (25626559).

Almost surely, 2^51253117 is an apocalyptic number.

It is an amenable number.

51253117 is a deficient number, since it is larger than the sum of its proper divisors (1).

51253117 is an equidigital number, since it uses as much as digits as its factorization.

51253117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1050, while the sum is 25.

The square root of 51253117 is about 7159.1282290514. The cubic root of 51253117 is about 371.4554723472.

The spelling of 51253117 in words is "fifty-one million, two hundred fifty-three thousand, one hundred seventeen".