52309780 has 24 divisors (see below), whose sum is σ = 110288808. Its totient is φ = 20840448.

The previous prime is 52309769. The next prime is 52309787. The reversal of 52309780 is 8790325.

52309780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 23386896 + 28922884 = 4836^2 + 5378^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52309787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52 + ... + 10228.

It is an arithmetic number, because the mean of its divisors is an integer number (4595367).

Almost surely, 2^52309780 is an apocalyptic number.

It is an amenable number.

52309780 is an abundant number, since it is smaller than the sum of its proper divisors (57979028).

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

52309780 is a wasteful number, since it uses less digits than its factorization.

52309780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10443 (or 10441 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 52309780 is about 7232.5500343931. The cubic root of 52309780 is about 373.9908392811.

The spelling of 52309780 in words is "fifty-two million, three hundred nine thousand, seven hundred eighty".