52731780 has 24 divisors (see below), whose sum is σ = 147649152. Its totient is φ = 14061792.

The previous prime is 52731751. The next prime is 52731799. The reversal of 52731780 is 8713725.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 439372 + ... + 439491.

It is an arithmetic number, because the mean of its divisors is an integer number (6152048).

Almost surely, 2^52731780 is an apocalyptic number.

It is an amenable number.

52731780 is an abundant number, since it is smaller than the sum of its proper divisors (94917372).

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

52731780 is a wasteful number, since it uses less digits than its factorization.

52731780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878875 (or 878873 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 52731780 is about 7261.6650983091. The cubic root of 52731780 is about 374.9938487880.

The spelling of 52731780 in words is "fifty-two million, seven hundred thirty-one thousand, seven hundred eighty".