13550381954 has 4 divisors (see below), whose sum is σ = 20325572934. Its totient is φ = 6775190976.

The previous prime is 13550381939. The next prime is 13550381959. The reversal of 13550381954 is 45918305531.

13550381954 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12495886225 + 1054495729 = 111785^2 + 32473^2 .

It is a super-2 number, since 2×13550381954² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13550381959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3387595487 + ... + 3387595490.

Almost surely, 2^13550381954 is an apocalyptic number.

13550381954 is a deficient number, since it is larger than the sum of its proper divisors (6775190980).

13550381954 is an equidigital number, since it uses as much as digits as its factorization.

13550381954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6775190979.

The product of its (nonzero) digits is 324000, while the sum is 44.

The spelling of 13550381954 in words is "thirteen billion, five hundred fifty million, three hundred eighty-one thousand, nine hundred fifty-four".