12553117 has 2 divisors, whose sum is σ = 12553118. Its totient is φ = 12553116.

The previous prime is 12553111. The next prime is 12553127. The reversal of 12553117 is 71135521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11062276 + 1490841 = 3326^2 + 1221^2 .

It is a cyclic number.

It is not a de Polignac number, because 12553117 - 2¹⁹ = 12028829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12553091 and 12553100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12553111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6276558 + 6276559.

It is an arithmetic number, because the mean of its divisors is an integer number (6276559).

Almost surely, 2^12553117 is an apocalyptic number.

It is an amenable number.

12553117 is a deficient number, since it is larger than the sum of its proper divisors (1).

12553117 is an equidigital number, since it uses as much as digits as its factorization.

12553117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1050, while the sum is 25.

The square root of 12553117 is about 3543.0378208537. The cubic root of 12553117 is about 232.4077068453.

Adding to 12553117 its reverse (71135521), we get a palindrome (83688638).

The spelling of 12553117 in words is "twelve million, five hundred fifty-three thousand, one hundred seventeen".