52133780 has 24 divisors (see below), whose sum is σ = 109778760. Its totient is φ = 20796800.

The previous prime is 52133779. The next prime is 52133789. The reversal of 52133780 is 8733125.

It can be written as a sum of positive squares in 4 ways, for example, as 925444 + 51208336 = 962^2 + 7156^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52133789) 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, 4430 + ... + 11130.

It is an arithmetic number, because the mean of its divisors is an integer number (4574115).

Almost surely, 2^52133780 is an apocalyptic number.

It is an amenable number.

52133780 is an abundant number, since it is smaller than the sum of its proper divisors (57644980).

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

52133780 is a wasteful number, since it uses less digits than its factorization.

52133780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7099 (or 7097 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 52133780 is about 7220.3725665647. The cubic root of 52133780 is about 373.5709283365.

The spelling of 52133780 in words is "fifty-two million, one hundred thirty-three thousand, seven hundred eighty".