6553123 has 2 divisors, whose sum is σ = 6553124. Its totient is φ = 6553122.

The previous prime is 6553117. The next prime is 6553139. The reversal of 6553123 is 3213556.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6553123 - 2¹⁷ = 6422051 is a prime.

6553123 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (6550123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3276561 + 3276562.

It is an arithmetic number, because the mean of its divisors is an integer number (3276562).

Almost surely, 2^6553123 is an apocalyptic number.

6553123 is a deficient number, since it is larger than the sum of its proper divisors (1).

6553123 is an equidigital number, since it uses as much as digits as its factorization.

6553123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2700, while the sum is 25.

The square root of 6553123 is about 2559.9068342422. The cubic root of 6553123 is about 187.1325949126.

Adding to 6553123 its reverse (3213556), we get a palindrome (9766679).

The spelling of 6553123 in words is "six million, five hundred fifty-three thousand, one hundred twenty-three".