53215205238 has 48 divisors (see below), whose sum is σ = 124239272976. Its totient is φ = 16364617920.

The previous prime is 53215205237. The next prime is 53215205297. The reversal of 53215205238 is 83250251235.

53215205238 is a `hidden beast` number, since 5 + 3 + 215 + 205 + 238 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53215205231) 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 23 ways as a sum of consecutive naturals, for example, 354528 + ... + 481788.

It is an arithmetic number, because the mean of its divisors is an integer number (2588318187).

Almost surely, 2^53215205238 is an apocalyptic number.

53215205238 is an abundant number, since it is smaller than the sum of its proper divisors (71024067738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53215205238 is a wasteful number, since it uses less digits than its factorization.

53215205238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129069 (or 129066 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The spelling of 53215205238 in words is "fifty-three billion, two hundred fifteen million, two hundred five thousand, two hundred thirty-eight".