53273780 has 36 divisors (see below), whose sum is σ = 130142628. Its totient is φ = 18264960.

The previous prime is 53273749. The next prime is 53273789. The reversal of 53273780 is 8737235.

53273780 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 2 ways, for example, as 25120144 + 28153636 = 5012^2 + 5306^2 .

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 53273780.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53273789) 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 11 ways as a sum of consecutive naturals, for example, 26201 + ... + 28160.

It is an arithmetic number, because the mean of its divisors is an integer number (3615073).

Almost surely, 2^53273780 is an apocalyptic number.

It is an amenable number.

53273780 is an abundant number, since it is smaller than the sum of its proper divisors (76868848).

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

53273780 is a wasteful number, since it uses less digits than its factorization.

53273780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54384 (or 54375 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 53273780 is about 7298.8889565467. Note that the first 3 decimals coincide. The cubic root of 53273780 is about 376.2742547912.

The spelling of 53273780 in words is "fifty-three million, two hundred seventy-three thousand, seven hundred eighty".