52178601658231 has 16 divisors (see below), whose sum is σ = 53430819536160. Its totient is φ = 50928159098880.

The previous prime is 52178601658223. The next prime is 52178601658283. The reversal of 52178601658231 is 13285610687125.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 52178601658231 - 2³ = 52178601658223 is a prime.

It is a super-2 number, since 2×52178601658231² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52178601655231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 338848551 + ... + 339002503.

It is an arithmetic number, because the mean of its divisors is an integer number (3339426221010).

Almost surely, 2^{52178601658231} is an apocalyptic number.

52178601658231 is a deficient number, since it is larger than the sum of its proper divisors (1252217877929).

52178601658231 is a wasteful number, since it uses less digits than its factorization.

52178601658231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159666.

The product of its (nonzero) digits is 4838400, while the sum is 55.

The spelling of 52178601658231 in words is "fifty-two trillion, one hundred seventy-eight billion, six hundred one million, six hundred fifty-eight thousand, two hundred thirty-one".