526213117 has 2 divisors, whose sum is σ = 526213118. Its totient is φ = 526213116.

The previous prime is 526213007. The next prime is 526213157. The reversal of 526213117 is 711312625.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 464574916 + 61638201 = 21554^2 + 7851^2 .

It is a cyclic number.

It is not a de Polignac number, because 526213117 - 2⁷ = 526212989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (526213157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 263106558 + 263106559.

It is an arithmetic number, because the mean of its divisors is an integer number (263106559).

Almost surely, 2^526213117 is an apocalyptic number.

It is an amenable number.

526213117 is a deficient number, since it is larger than the sum of its proper divisors (1).

526213117 is an equidigital number, since it uses as much as digits as its factorization.

526213117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2520, while the sum is 28.

The square root of 526213117 is about 22939.3355832291. The cubic root of 526213117 is about 807.3352030412.

The spelling of 526213117 in words is "five hundred twenty-six million, two hundred thirteen thousand, one hundred seventeen".