52130917 has 2 divisors, whose sum is σ = 52130918. Its totient is φ = 52130916.

The previous prime is 52130899. The next prime is 52130941. The reversal of 52130917 is 71903125.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43046721 + 9084196 = 6561^2 + 3014^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52130917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52130957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26065458 + 26065459.

It is an arithmetic number, because the mean of its divisors is an integer number (26065459).

Almost surely, 2^52130917 is an apocalyptic number.

It is an amenable number.

52130917 is a deficient number, since it is larger than the sum of its proper divisors (1).

52130917 is an equidigital number, since it uses as much as digits as its factorization.

52130917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 52130917 is about 7220.1743053752. The cubic root of 52130917 is about 373.5640898200.

The spelling of 52130917 in words is "fifty-two million, one hundred thirty thousand, nine hundred seventeen".