12522427 has 2 divisors, whose sum is σ = 12522428. Its totient is φ = 12522426.

The previous prime is 12522413. The next prime is 12522439. The reversal of 12522427 is 72422521.

It is a strong prime.

It is an emirp because it is prime and its reverse (72422521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12522427 - 2¹¹ = 12520379 is a prime.

It is a super-2 number, since 2×12522427² = 313622355940658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12522457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6261213 + 6261214.

It is an arithmetic number, because the mean of its divisors is an integer number (6261214).

Almost surely, 2^12522427 is an apocalyptic number.

12522427 is a deficient number, since it is larger than the sum of its proper divisors (1).

12522427 is an equidigital number, since it uses as much as digits as its factorization.

12522427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2240, while the sum is 25.

The square root of 12522427 is about 3538.7041413489. The cubic root of 12522427 is about 232.2181546396.

Adding to 12522427 its reverse (72422521), we get a palindrome (84944948).

The spelling of 12522427 in words is "twelve million, five hundred twenty-two thousand, four hundred twenty-seven".