13985225537 has 2 divisors, whose sum is σ = 13985225538. Its totient is φ = 13985225536.

The previous prime is 13985225531. The next prime is 13985225561. The reversal of 13985225537 is 73552258931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10296363841 + 3688861696 = 101471^2 + 60736^2 .

It is a cyclic number.

It is not a de Polignac number, because 13985225537 - 2⁸ = 13985225281 is a prime.

It is not a weakly prime, because it can be changed into another prime (13985225531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6992612768 + 6992612769.

It is an arithmetic number, because the mean of its divisors is an integer number (6992612769).

Almost surely, 2^13985225537 is an apocalyptic number.

It is an amenable number.

13985225537 is a deficient number, since it is larger than the sum of its proper divisors (1).

13985225537 is an equidigital number, since it uses as much as digits as its factorization.

13985225537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2268000, while the sum is 50.

The spelling of 13985225537 in words is "thirteen billion, nine hundred eighty-five million, two hundred twenty-five thousand, five hundred thirty-seven".