6656527 has 2 divisors, whose sum is σ = 6656528. Its totient is φ = 6656526.

The previous prime is 6656497. The next prime is 6656539. The reversal of 6656527 is 7256566.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6656527 - 2¹⁵ = 6623759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6656597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3328263 + 3328264.

It is an arithmetic number, because the mean of its divisors is an integer number (3328264).

Almost surely, 2^6656527 is an apocalyptic number.

6656527 is a deficient number, since it is larger than the sum of its proper divisors (1).

6656527 is an equidigital number, since it uses as much as digits as its factorization.

6656527 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75600, while the sum is 37.

The square root of 6656527 is about 2580.0246122857. The cubic root of 6656527 is about 188.1117394435. Note that the first 3 decimals are identical.

It can be divided in two parts, 665652 and 7, that multiplied together give a palindrome (4659564).

The spelling of 6656527 in words is "six million, six hundred fifty-six thousand, five hundred twenty-seven".