6624551 has 2 divisors, whose sum is σ = 6624552. Its totient is φ = 6624550.

The previous prime is 6624547. The next prime is 6624581. The reversal of 6624551 is 1554266.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6624551 - 2² = 6624547 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6624581) 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, 3312275 + 3312276.

It is an arithmetic number, because the mean of its divisors is an integer number (3312276).

Almost surely, 2^6624551 is an apocalyptic number.

6624551 is a deficient number, since it is larger than the sum of its proper divisors (1).

6624551 is an equidigital number, since it uses as much as digits as its factorization.

6624551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7200, while the sum is 29.

The square root of 6624551 is about 2573.8203122984. The cubic root of 6624551 is about 187.8100446660.

The spelling of 6624551 in words is "six million, six hundred twenty-four thousand, five hundred fifty-one".