53039137873 has 4 divisors (see below), whose sum is σ = 53041393828. Its totient is φ = 53036881920.

The previous prime is 53039137871. The next prime is 53039137933. The reversal of 53039137873 is 37873193035.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37873193035 = 5 ⋅7574638607.

It can be written as a sum of positive squares in 2 ways, for example, as 35309416464 + 17729721409 = 187908^2 + 133153^2 .

It is a cyclic number.

It is not a de Polignac number, because 53039137873 - 2¹ = 53039137871 is a prime.

It is a super-2 number, since 2×53039137873² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53039137871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1092336 + ... + 1139857.

It is an arithmetic number, because the mean of its divisors is an integer number (13260348457).

Almost surely, 2^53039137873 is an apocalyptic number.

It is an amenable number.

53039137873 is a deficient number, since it is larger than the sum of its proper divisors (2255955).

53039137873 is a wasteful number, since it uses less digits than its factorization.

53039137873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2255954.

The product of its (nonzero) digits is 1428840, while the sum is 49.

The spelling of 53039137873 in words is "fifty-three billion, thirty-nine million, one hundred thirty-seven thousand, eight hundred seventy-three".