6527641 has 2 divisors, whose sum is σ = 6527642. Its totient is φ = 6527640.

The previous prime is 6527629. The next prime is 6527663. The reversal of 6527641 is 1467256.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6350400 + 177241 = 2520^2 + 421^2 .

It is a cyclic number.

It is not a de Polignac number, because 6527641 - 2¹⁷ = 6396569 is a prime.

It is a super-2 number, since 2×6527641² = 85220194049762, which contains 22 as substring.

6527641 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (6527681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3263820 + 3263821.

It is an arithmetic number, because the mean of its divisors is an integer number (3263821).

Almost surely, 2^6527641 is an apocalyptic number.

It is an amenable number.

6527641 is a deficient number, since it is larger than the sum of its proper divisors (1).

6527641 is an equidigital number, since it uses as much as digits as its factorization.

6527641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 31.

The square root of 6527641 is about 2554.9248521238. The cubic root of 6527641 is about 186.8897230787.

The spelling of 6527641 in words is "six million, five hundred twenty-seven thousand, six hundred forty-one".