13444322425 has 12 divisors (see below), whose sum is σ = 17245821420. Its totient is φ = 10384579520.

The previous prime is 13444322417. The next prime is 13444322429. The reversal of 13444322425 is 52422344431.

It can be written as a sum of positive squares in 6 ways, for example, as 2432758329 + 11011564096 = 49323^2 + 104936^2 .

It is not a de Polignac number, because 13444322425 - 2³ = 13444322417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13444322429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9271222 + ... + 9272671.

It is an arithmetic number, because the mean of its divisors is an integer number (1437151785).

Almost surely, 2^13444322425 is an apocalyptic number.

It is an amenable number.

13444322425 is a deficient number, since it is larger than the sum of its proper divisors (3801498995).

13444322425 is a wasteful number, since it uses less digits than its factorization.

13444322425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18543932 (or 18543927 counting only the distinct ones).

The product of its digits is 92160, while the sum is 34.

Adding to 13444322425 its reverse (52422344431), we get a palindrome (65866666856).

The spelling of 13444322425 in words is "thirteen billion, four hundred forty-four million, three hundred twenty-two thousand, four hundred twenty-five".