53243777 has 8 divisors (see below), whose sum is σ = 54777000. Its totient is φ = 51715584.

The previous prime is 53243759. The next prime is 53243803. The reversal of 53243777 is 77734235.

53243777 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 2421136 + 50822641 = 1556^2 + 7129^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53243777 - 2⁶ = 53243713 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53243777.

It is not an unprimeable number, because it can be changed into a prime (53243737) 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, 33599 + ... + 35147.

It is an arithmetic number, because the mean of its divisors is an integer number (6847125).

Almost surely, 2^53243777 is an apocalyptic number.

It is an amenable number.

53243777 is a deficient number, since it is larger than the sum of its proper divisors (1533223).

53243777 is a wasteful number, since it uses less digits than its factorization.

53243777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2515.

The product of its digits is 123480, while the sum is 38.

The square root of 53243777 is about 7296.8333542709. The cubic root of 53243777 is about 376.2036041730.

The spelling of 53243777 in words is "fifty-three million, two hundred forty-three thousand, seven hundred seventy-seven".