53856042539 has 4 divisors (see below), whose sum is σ = 57998815056. Its totient is φ = 49713270024.

The previous prime is 53856042509. The next prime is 53856042553. The reversal of 53856042539 is 93524065835.

53856042539 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 is a cyclic number.

It is not a de Polignac number, because 53856042539 - 2¹⁶ = 53855977003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53856042509) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2071386239 + ... + 2071386264.

It is an arithmetic number, because the mean of its divisors is an integer number (14499703764).

Almost surely, 2^53856042539 is an apocalyptic number.

53856042539 is a deficient number, since it is larger than the sum of its proper divisors (4142772517).

53856042539 is a wasteful number, since it uses less digits than its factorization.

53856042539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4142772516.

The product of its (nonzero) digits is 3888000, while the sum is 50.

The spelling of 53856042539 in words is "fifty-three billion, eight hundred fifty-six million, forty-two thousand, five hundred thirty-nine".