51265163 has 2 divisors, whose sum is σ = 51265164. Its totient is φ = 51265162.

The previous prime is 51265153. The next prime is 51265171. The reversal of 51265163 is 36156215.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51265163 - 2⁶ = 51265099 is a prime.

It is not a weakly prime, because it can be changed into another prime (51265133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25632581 + 25632582.

It is an arithmetic number, because the mean of its divisors is an integer number (25632582).

Almost surely, 2^51265163 is an apocalyptic number.

51265163 is a deficient number, since it is larger than the sum of its proper divisors (1).

51265163 is an equidigital number, since it uses as much as digits as its factorization.

51265163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5400, while the sum is 29.

The square root of 51265163 is about 7159.9694831752. The cubic root of 51265163 is about 371.4845710790.

The spelling of 51265163 in words is "fifty-one million, two hundred sixty-five thousand, one hundred sixty-three".