51052403617 has 2 divisors, whose sum is σ = 51052403618. Its totient is φ = 51052403616.

The previous prime is 51052403593. The next prime is 51052403653. The reversal of 51052403617 is 71630425015.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28993916176 + 22058487441 = 170276^2 + 148521^2 .

It is a cyclic number.

It is not a de Polignac number, because 51052403617 - 2²⁷ = 50918185889 is a prime.

It is not a weakly prime, because it can be changed into another prime (51052403317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25526201808 + 25526201809.

It is an arithmetic number, because the mean of its divisors is an integer number (25526201809).

Almost surely, 2^51052403617 is an apocalyptic number.

It is an amenable number.

51052403617 is a deficient number, since it is larger than the sum of its proper divisors (1).

51052403617 is an equidigital number, since it uses as much as digits as its factorization.

51052403617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25200, while the sum is 34.

The spelling of 51052403617 in words is "fifty-one billion, fifty-two million, four hundred three thousand, six hundred seventeen".