13625422605 has 24 divisors (see below), whose sum is σ = 24255710232. Its totient is φ = 7070488704.

The previous prime is 13625422579. The next prime is 13625422607. The reversal of 13625422605 is 50622452631.

13625422605 is a `hidden beast` number, since 1 + 3 + 6 + 2 + 5 + 42 + 2 + 605 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 498450276 + 13126972329 = 22326^2 + 114573^2 .

It is not a de Polignac number, because 13625422605 - 2¹⁰ = 13625421581 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13625422605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13625422607) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4090054 + ... + 4093383.

It is an arithmetic number, because the mean of its divisors is an integer number (1010654593).

Almost surely, 2^13625422605 is an apocalyptic number.

13625422605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13625422605 is a deficient number, since it is larger than the sum of its proper divisors (10630287627).

13625422605 is a wasteful number, since it uses less digits than its factorization.

13625422605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8183485 (or 8183482 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 13625422605 in words is "thirteen billion, six hundred twenty-five million, four hundred twenty-two thousand, six hundred five".