52555391668417 has 4 divisors (see below), whose sum is σ = 57333154547376. Its totient is φ = 47777628789460.

The previous prime is 52555391668363. The next prime is 52555391668457. The reversal of 52555391668417 is 71486619355525.

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.

It is a cyclic number.

It is not a de Polignac number, because 52555391668417 - 2²³ = 52555383279809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52555391668457) 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, 2388881439463 + ... + 2388881439484.

It is an arithmetic number, because the mean of its divisors is an integer number (14333288636844).

Almost surely, 2^{52555391668417} is an apocalyptic number.

It is an amenable number.

52555391668417 is a deficient number, since it is larger than the sum of its proper divisors (4777762878959).

52555391668417 is a wasteful number, since it uses less digits than its factorization.

52555391668417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4777762878958.

The product of its digits is 272160000, while the sum is 67.

The spelling of 52555391668417 in words is "fifty-two trillion, five hundred fifty-five billion, three hundred ninety-one million, six hundred sixty-eight thousand, four hundred seventeen".