53836720039 has 4 divisors (see below), whose sum is σ = 56670231640. Its totient is φ = 51003208440.

The previous prime is 53836720037. The next prime is 53836720097. The reversal of 53836720039 is 93002763835.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93002763835 = 5 ⋅18600552767.

It is a cyclic number.

It is not a de Polignac number, because 53836720039 - 2¹ = 53836720037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53836720037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1416755772 + ... + 1416755809.

It is an arithmetic number, because the mean of its divisors is an integer number (14167557910).

Almost surely, 2^53836720039 is an apocalyptic number.

53836720039 is a deficient number, since it is larger than the sum of its proper divisors (2833511601).

53836720039 is a wasteful number, since it uses less digits than its factorization.

53836720039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2833511600.

The product of its (nonzero) digits is 816480, while the sum is 46.

The spelling of 53836720039 in words is "fifty-three billion, eight hundred thirty-six million, seven hundred twenty thousand, thirty-nine".