6545531 has 2 divisors, whose sum is σ = 6545532. Its totient is φ = 6545530.

The previous prime is 6545509. The next prime is 6545537. The reversal of 6545531 is 1355456.

6545531 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6545531 - 2⁶ = 6545467 is a prime.

It is a super-2 number, since 2×6545531² = 85687952143922, which contains 22 as substring.

It is a Chen prime.

It is equal to p₄₄₇₆₆₂ and since 6545531 and 447662 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 6545494 and 6545503.

It is not a weakly prime, because it can be changed into another prime (6545537) 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, 3272765 + 3272766.

It is an arithmetic number, because the mean of its divisors is an integer number (3272766).

Almost surely, 2^6545531 is an apocalyptic number.

6545531 is a deficient number, since it is larger than the sum of its proper divisors (1).

6545531 is an equidigital number, since it uses as much as digits as its factorization.

6545531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9000, while the sum is 29.

The square root of 6545531 is about 2558.4235380406. The cubic root of 6545531 is about 187.0603006462.

It can be divided in two parts, 65455 and 31, that multiplied together give a triangular number (2029105 = T₂₀₁₄).

The spelling of 6545531 in words is "six million, five hundred forty-five thousand, five hundred thirty-one".