52375173640 has 16 divisors (see below), whose sum is σ = 117844140780. Its totient is φ = 20950069440.

The previous prime is 52375173623. The next prime is 52375173647. The reversal of 52375173640 is 4637157325.

It can be written as a sum of positive squares in 2 ways, for example, as 49901304996 + 2473868644 = 223386^2 + 49738^2 .

It is not an unprimeable number, because it can be changed into a prime (52375173647) 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, 654689631 + ... + 654689710.

Almost surely, 2^52375173640 is an apocalyptic number.

It is an amenable number.

52375173640 is an abundant number, since it is smaller than the sum of its proper divisors (65468967140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52375173640 is a wasteful number, since it uses less digits than its factorization.

52375173640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1309379352 (or 1309379348 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 43.

The spelling of 52375173640 in words is "fifty-two billion, three hundred seventy-five million, one hundred seventy-three thousand, six hundred forty".