12553379 has 2 divisors, whose sum is σ = 12553380. Its totient is φ = 12553378.

The previous prime is 12553313. The next prime is 12553381. The reversal of 12553379 is 97335521.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12553379 is a prime.

Together with 12553381, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12553309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6276689 + 6276690.

It is an arithmetic number, because the mean of its divisors is an integer number (6276690).

Almost surely, 2^12553379 is an apocalyptic number.

12553379 is a deficient number, since it is larger than the sum of its proper divisors (1).

12553379 is an equidigital number, since it uses as much as digits as its factorization.

12553379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28350, while the sum is 35.

The square root of 12553379 is about 3543.0747945817. The cubic root of 12553379 is about 232.4093237185.

The spelling of 12553379 in words is "twelve million, five hundred fifty-three thousand, three hundred seventy-nine".