52131031285 has 8 divisors (see below), whose sum is σ = 62577854136. Its totient is φ = 41691080640.

The previous prime is 52131031283. The next prime is 52131031307. The reversal of 52131031285 is 58213013125.

It can be written as a sum of positive squares in 4 ways, for example, as 8309051716 + 43821979569 = 91154^2 + 209337^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 52131031285 - 2¹ = 52131031283 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 (52131031283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1701346 + ... + 1731715.

It is an arithmetic number, because the mean of its divisors is an integer number (7822231767).

Almost surely, 2^52131031285 is an apocalyptic number.

It is an amenable number.

52131031285 is a deficient number, since it is larger than the sum of its proper divisors (10446822851).

52131031285 is a wasteful number, since it uses less digits than its factorization.

52131031285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3436103.

The product of its (nonzero) digits is 7200, while the sum is 31.

The spelling of 52131031285 in words is "fifty-two billion, one hundred thirty-one million, thirty-one thousand, two hundred eighty-five".