526116491 has 2 divisors, whose sum is σ = 526116492. Its totient is φ = 526116490.

The previous prime is 526116443. The next prime is 526116497. The reversal of 526116491 is 194611625.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 526116491 - 2⁶ = 526116427 is a prime.

It is not a weakly prime, because it can be changed into another prime (526116497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 263058245 + 263058246.

It is an arithmetic number, because the mean of its divisors is an integer number (263058246).

Almost surely, 2^526116491 is an apocalyptic number.

526116491 is a deficient number, since it is larger than the sum of its proper divisors (1).

526116491 is an equidigital number, since it uses as much as digits as its factorization.

526116491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 35.

The square root of 526116491 is about 22937.2293662508. The cubic root of 526116491 is about 807.2857843145.

The spelling of 526116491 in words is "five hundred twenty-six million, one hundred sixteen thousand, four hundred ninety-one".