6556280623 has 2 divisors, whose sum is σ = 6556280624. Its totient is φ = 6556280622.

The previous prime is 6556280609. The next prime is 6556280669. The reversal of 6556280623 is 3260826556.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6556280623 - 2¹³ = 6556272431 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6556280623.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6556280683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3278140311 + 3278140312.

It is an arithmetic number, because the mean of its divisors is an integer number (3278140312).

Almost surely, 2^6556280623 is an apocalyptic number.

6556280623 is a deficient number, since it is larger than the sum of its proper divisors (1).

6556280623 is an equidigital number, since it uses as much as digits as its factorization.

6556280623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 518400, while the sum is 43.

The square root of 6556280623 is about 80970.8628026156. The cubic root of 6556280623 is about 1871.6264670642.

The spelling of 6556280623 in words is "six billion, five hundred fifty-six million, two hundred eighty thousand, six hundred twenty-three".