53517237317 has 4 divisors (see below), whose sum is σ = 53518159680. Its totient is φ = 53516314956.

The previous prime is 53517237307. The next prime is 53517237329. The reversal of 53517237317 is 71373271535.

It is a happy number.

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: 71373271535 = 5 ⋅14274654307.

It is a cyclic number.

It is not a de Polignac number, because 53517237317 - 2⁸ = 53517237061 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 (53517237307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 367853 + ... + 492290.

It is an arithmetic number, because the mean of its divisors is an integer number (13379539920).

Almost surely, 2^53517237317 is an apocalyptic number.

It is an amenable number.

53517237317 is a deficient number, since it is larger than the sum of its proper divisors (922363).

53517237317 is an equidigital number, since it uses as much as digits as its factorization.

53517237317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 922362.

The product of its digits is 463050, while the sum is 44.

The spelling of 53517237317 in words is "fifty-three billion, five hundred seventeen million, two hundred thirty-seven thousand, three hundred seventeen".