53311867 has 4 divisors (see below), whose sum is σ = 60927856. Its totient is φ = 45695880.

The previous prime is 53311829. The next prime is 53311871. The reversal of 53311867 is 76811335.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53311867 - 2¹⁵ = 53279099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53311877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3807984 + ... + 3807997.

It is an arithmetic number, because the mean of its divisors is an integer number (15231964).

Almost surely, 2^53311867 is an apocalyptic number.

53311867 is a deficient number, since it is larger than the sum of its proper divisors (7615989).

53311867 is an equidigital number, since it uses as much as digits as its factorization.

53311867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7615988.

The product of its digits is 15120, while the sum is 34.

The square root of 53311867 is about 7301.4975861120. The cubic root of 53311867 is about 376.3639032927.

The spelling of 53311867 in words is "fifty-three million, three hundred eleven thousand, eight hundred sixty-seven".