526543541 has 2 divisors, whose sum is σ = 526543542. Its totient is φ = 526543540.

The previous prime is 526543489. The next prime is 526543543. The reversal of 526543541 is 145345625.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 525784900 + 758641 = 22930^2 + 871^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-526543541 is a prime.

Together with 526543543, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (526543543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 263271770 + 263271771.

It is an arithmetic number, because the mean of its divisors is an integer number (263271771).

Almost surely, 2^526543541 is an apocalyptic number.

It is an amenable number.

526543541 is a deficient number, since it is larger than the sum of its proper divisors (1).

526543541 is an equidigital number, since it uses as much as digits as its factorization.

526543541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72000, while the sum is 35.

The square root of 526543541 is about 22946.5365796235. The cubic root of 526543541 is about 807.5041505025.

The spelling of 526543541 in words is "five hundred twenty-six million, five hundred forty-three thousand, five hundred forty-one".