526471217 has 2 divisors, whose sum is σ = 526471218. Its totient is φ = 526471216.

The previous prime is 526471159. The next prime is 526471259. The reversal of 526471217 is 712174625.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 521254561 + 5216656 = 22831^2 + 2284^2 .

It is a cyclic number.

It is not a de Polignac number, because 526471217 - 2⁸ = 526470961 is a prime.

It is a super-2 number, since 2×526471217² = 554343884658922178, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (526471117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 263235608 + 263235609.

It is an arithmetic number, because the mean of its divisors is an integer number (263235609).

Almost surely, 2^526471217 is an apocalyptic number.

It is an amenable number.

526471217 is a deficient number, since it is larger than the sum of its proper divisors (1).

526471217 is an equidigital number, since it uses as much as digits as its factorization.

526471217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23520, while the sum is 35.

The square root of 526471217 is about 22944.9606014044. The cubic root of 526471217 is about 807.4671769192.

The spelling of 526471217 in words is "five hundred twenty-six million, four hundred seventy-one thousand, two hundred seventeen".