52187845040 has 20 divisors (see below), whose sum is σ = 121336739904. Its totient is φ = 20875137984.

The previous prime is 52187845019. The next prime is 52187845057. The reversal of 52187845040 is 4054878125.

It is a tau number, because it is divible by the number of its divisors (20).

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 52187844982 and 52187845000.

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, 326173952 + ... + 326174111.

Almost surely, 2^52187845040 is an apocalyptic number.

It is an amenable number.

52187845040 is an abundant number, since it is smaller than the sum of its proper divisors (69148894864).

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

52187845040 is a wasteful number, since it uses less digits than its factorization.

52187845040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652348076 (or 652348070 counting only the distinct ones).

The product of its (nonzero) digits is 358400, while the sum is 44.

The spelling of 52187845040 in words is "fifty-two billion, one hundred eighty-seven million, eight hundred forty-five thousand, forty".