53811769 has 4 divisors (see below), whose sum is σ = 58703760. Its totient is φ = 48919780.

The previous prime is 53811761. The next prime is 53811773. The reversal of 53811769 is 96711835.

53811769 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 a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 53811769 - 2³ = 53811761 is a prime.

It is a super-2 number, since 2×53811769² = 5791412965818722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53811761) 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, 2445979 + ... + 2446000.

It is an arithmetic number, because the mean of its divisors is an integer number (14675940).

Almost surely, 2^53811769 is an apocalyptic number.

It is an amenable number.

53811769 is a deficient number, since it is larger than the sum of its proper divisors (4891991).

53811769 is a wasteful number, since it uses less digits than its factorization.

53811769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4891990.

The product of its digits is 45360, while the sum is 40.

The square root of 53811769 is about 7335.6505505647. The cubic root of 53811769 is about 377.5366255416.

The spelling of 53811769 in words is "fifty-three million, eight hundred eleven thousand, seven hundred sixty-nine".