526645213 has 2 divisors, whose sum is σ = 526645214. Its totient is φ = 526645212.

The previous prime is 526645187. The next prime is 526645243. The reversal of 526645213 is 312546625.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 521528569 + 5116644 = 22837^2 + 2262^2 .

It is a cyclic number.

It is not a de Polignac number, because 526645213 - 2⁵ = 526645181 is a prime.

It is a super-3 number, since 3×526645213³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (526645243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 263322606 + 263322607.

It is an arithmetic number, because the mean of its divisors is an integer number (263322607).

Almost surely, 2^526645213 is an apocalyptic number.

It is an amenable number.

526645213 is a deficient number, since it is larger than the sum of its proper divisors (1).

526645213 is an equidigital number, since it uses as much as digits as its factorization.

526645213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43200, while the sum is 34.

The square root of 526645213 is about 22948.7518832724. The cubic root of 526645213 is about 807.5561216893.

The spelling of 526645213 in words is "five hundred twenty-six million, six hundred forty-five thousand, two hundred thirteen".