53965148417 has 4 divisors (see below), whose sum is σ = 53972890116. Its totient is φ = 53957406720.

The previous prime is 53965148389. The next prime is 53965148431. The reversal of 53965148417 is 71484156935.

It is a Cunningham number, because it is equal to 232304²+1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71484156935 = 5 ⋅14296831387.

It can be written as a sum of positive squares in 2 ways, for example, as 10688251456 + 43276896961 = 103384^2 + 208031^2 .

It is a cyclic number.

It is not a de Polignac number, because 53965148417 - 2¹⁰ = 53965147393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53965148437) 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, 3860384 + ... + 3874337.

It is an arithmetic number, because the mean of its divisors is an integer number (13493222529).

Almost surely, 2^53965148417 is an apocalyptic number.

It is an amenable number.

53965148417 is a deficient number, since it is larger than the sum of its proper divisors (7741699).

53965148417 is an equidigital number, since it uses as much as digits as its factorization.

53965148417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7741698.

The product of its digits is 3628800, while the sum is 53.

The spelling of 53965148417 in words is "fifty-three billion, nine hundred sixty-five million, one hundred forty-eight thousand, four hundred seventeen".