53055805780 has 24 divisors (see below), whose sum is σ = 112943458152. Its totient is φ = 20931604992.

The previous prime is 53055805771. The next prime is 53055805787. The reversal of 53055805780 is 8750855035.

It can be written as a sum of positive squares in 4 ways, for example, as 24100699536 + 28955106244 = 155244^2 + 170162^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 53055805780.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53055805787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18168337 + ... + 18171256.

It is an arithmetic number, because the mean of its divisors is an integer number (4705977423).

Almost surely, 2^53055805780 is an apocalyptic number.

It is an amenable number.

53055805780 is an abundant number, since it is smaller than the sum of its proper divisors (59887652372).

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

53055805780 is a wasteful number, since it uses less digits than its factorization.

53055805780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36339675 (or 36339673 counting only the distinct ones).

The product of its (nonzero) digits is 840000, while the sum is 46.

The spelling of 53055805780 in words is "fifty-three billion, fifty-five million, eight hundred five thousand, seven hundred eighty".