12422455 has 4 divisors (see below), whose sum is σ = 14906952. Its totient is φ = 9937960.

The previous prime is 12422453. The next prime is 12422471. The reversal of 12422455 is 55422421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55422421 = 887 ⋅62483.

It is not a de Polignac number, because 12422455 - 2¹ = 12422453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12422453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1242241 + ... + 1242250.

It is an arithmetic number, because the mean of its divisors is an integer number (3726738).

Almost surely, 2^12422455 is an apocalyptic number.

12422455 is a deficient number, since it is larger than the sum of its proper divisors (2484497).

12422455 is an equidigital number, since it uses as much as digits as its factorization.

12422455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2484496.

The product of its digits is 3200, while the sum is 25.

The square root of 12422455 is about 3524.5503259281. The cubic root of 12422455 is about 231.5985365162.

Adding to 12422455 its reverse (55422421), we get a palindrome (67844876).

The spelling of 12422455 in words is "twelve million, four hundred twenty-two thousand, four hundred fifty-five".