53127785 has 4 divisors (see below), whose sum is σ = 63753348. Its totient is φ = 42502224.

The previous prime is 53127779. The next prime is 53127787. The reversal of 53127785 is 58772135.

It is a happy number.

53127785 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58772135 = 5 ⋅11754427.

It can be written as a sum of positive squares in 2 ways, for example, as 22080601 + 31047184 = 4699^2 + 5572^2 .

It is a cyclic number.

It is not a de Polignac number, because 53127785 - 2¹⁰ = 53126761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53127787) 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 3 ways as a sum of consecutive naturals, for example, 5312774 + ... + 5312783.

It is an arithmetic number, because the mean of its divisors is an integer number (15938337).

Almost surely, 2^53127785 is an apocalyptic number.

It is an amenable number.

53127785 is a deficient number, since it is larger than the sum of its proper divisors (10625563).

53127785 is a wasteful number, since it uses less digits than its factorization.

53127785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10625562.

The product of its digits is 58800, while the sum is 38.

The square root of 53127785 is about 7288.8809154767. The cubic root of 53127785 is about 375.9302180179.

The spelling of 53127785 in words is "fifty-three million, one hundred twenty-seven thousand, seven hundred eighty-five".