53138678203 has 16 divisors (see below), whose sum is σ = 60712529920. Its totient is φ = 46103522976.

The previous prime is 53138678189. The next prime is 53138678209. The reversal of 53138678203 is 30287683135.

It is a cyclic number.

It is not a de Polignac number, because 53138678203 - 2⁵ = 53138678171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53138678209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 815625 + ... + 878362.

It is an arithmetic number, because the mean of its divisors is an integer number (3794533120).

Almost surely, 2^53138678203 is an apocalyptic number.

53138678203 is a deficient number, since it is larger than the sum of its proper divisors (7573851717).

53138678203 is a wasteful number, since it uses less digits than its factorization.

53138678203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1694146.

The product of its (nonzero) digits is 725760, while the sum is 46.

The spelling of 53138678203 in words is "fifty-three billion, one hundred thirty-eight million, six hundred seventy-eight thousand, two hundred three".