53788332517 has 4 divisors (see below), whose sum is σ = 54436384800. Its totient is φ = 53140280236.

The previous prime is 53788332491. The next prime is 53788332557. The reversal of 53788332517 is 71523388735.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 71523388735 = 5 ⋅14304677747.

It is a cyclic number.

It is not a de Polignac number, because 53788332517 - 2¹⁵ = 53788299749 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 (53788332557) 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, 324026017 + ... + 324026182.

It is an arithmetic number, because the mean of its divisors is an integer number (13609096200).

Almost surely, 2^53788332517 is an apocalyptic number.

It is an amenable number.

53788332517 is a deficient number, since it is larger than the sum of its proper divisors (648052283).

53788332517 is an equidigital number, since it uses as much as digits as its factorization.

53788332517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648052282.

The product of its digits is 4233600, while the sum is 52.

The spelling of 53788332517 in words is "fifty-three billion, seven hundred eighty-eight million, three hundred thirty-two thousand, five hundred seventeen".