52031340145 has 4 divisors (see below), whose sum is σ = 62437608180. Its totient is φ = 41625072112.

The previous prime is 52031340133. The next prime is 52031340187. The reversal of 52031340145 is 54104313025.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 29906860096 + 22124480049 = 172936^2 + 148743^2 .

It is a cyclic number.

It is not a de Polignac number, because 52031340145 - 2⁵ = 52031340113 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5203134010 + ... + 5203134019.

It is an arithmetic number, because the mean of its divisors is an integer number (15609402045).

Almost surely, 2^52031340145 is an apocalyptic number.

It is an amenable number.

52031340145 is a deficient number, since it is larger than the sum of its proper divisors (10406268035).

52031340145 is a wasteful number, since it uses less digits than its factorization.

52031340145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10406268034.

The product of its (nonzero) digits is 7200, while the sum is 28.

The spelling of 52031340145 in words is "fifty-two billion, thirty-one million, three hundred forty thousand, one hundred forty-five".