13957553385 has 48 divisors (see below), whose sum is σ = 24331881600. Its totient is φ = 7401461760.

The previous prime is 13957553383. The next prime is 13957553417. The reversal of 13957553385 is 58335575931.

13957553385 is a `hidden beast` number, since 1 + 3 + 9 + 5 + 7 + 553 + 3 + 85 = 666.

It is not a de Polignac number, because 13957553385 - 2¹ = 13957553383 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13957553383) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6686812 + ... + 6688898.

It is an arithmetic number, because the mean of its divisors is an integer number (506914200).

Almost surely, 2^13957553385 is an apocalyptic number.

13957553385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13957553385 is a deficient number, since it is larger than the sum of its proper divisors (10374328215).

13957553385 is a wasteful number, since it uses less digits than its factorization.

13957553385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2878 (or 2875 counting only the distinct ones).

The product of its digits is 8505000, while the sum is 54.

The spelling of 13957553385 in words is "thirteen billion, nine hundred fifty-seven million, five hundred fifty-three thousand, three hundred eighty-five".