6554663 has 2 divisors, whose sum is σ = 6554664. Its totient is φ = 6554662.

The previous prime is 6554657. The next prime is 6554683. The reversal of 6554663 is 3664556.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6554663 - 2⁶ = 6554599 is a prime.

It is a super-3 number, since 3×6554663³ (a number of 21 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6554623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3277331 + 3277332.

It is an arithmetic number, because the mean of its divisors is an integer number (3277332).

Almost surely, 2^6554663 is an apocalyptic number.

6554663 is a deficient number, since it is larger than the sum of its proper divisors (1).

6554663 is an equidigital number, since it uses as much as digits as its factorization.

6554663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64800, while the sum is 35.

The square root of 6554663 is about 2560.2076087693. The cubic root of 6554663 is about 187.1472526376.

The spelling of 6554663 in words is "six million, five hundred fifty-four thousand, six hundred sixty-three".