52129117 has 2 divisors, whose sum is σ = 52129118. Its totient is φ = 52129116.

The previous prime is 52129087. The next prime is 52129127. The reversal of 52129117 is 71192125.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30404196 + 21724921 = 5514^2 + 4661^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52129117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52129127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26064558 + 26064559.

It is an arithmetic number, because the mean of its divisors is an integer number (26064559).

Almost surely, 2^52129117 is an apocalyptic number.

It is an amenable number.

52129117 is a deficient number, since it is larger than the sum of its proper divisors (1).

52129117 is an equidigital number, since it uses as much as digits as its factorization.

52129117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1260, while the sum is 28.

The square root of 52129117 is about 7220.0496535689. The cubic root of 52129117 is about 373.5597902403.

The spelling of 52129117 in words is "fifty-two million, one hundred twenty-nine thousand, one hundred seventeen".