13885631425 has 6 divisors (see below), whose sum is σ = 17218182998. Its totient is φ = 11108505120.

The previous prime is 13885631381. The next prime is 13885631437. The reversal of 13885631425 is 52413658831.

It can be written as a sum of positive squares in 3 ways, for example, as 842392576 + 13043238849 = 29024^2 + 114207^2 .

It is not a de Polignac number, because 13885631425 - 2¹³ = 13885623233 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 277712604 + ... + 277712653.

Almost surely, 2^13885631425 is an apocalyptic number.

It is an amenable number.

13885631425 is a deficient number, since it is larger than the sum of its proper divisors (3332551573).

13885631425 is an equidigital number, since it uses as much as digits as its factorization.

13885631425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555425267 (or 555425262 counting only the distinct ones).

The product of its digits is 691200, while the sum is 46.

The spelling of 13885631425 in words is "thirteen billion, eight hundred eighty-five million, six hundred thirty-one thousand, four hundred twenty-five".