53312111 has 4 divisors (see below), whose sum is σ = 53591424. Its totient is φ = 53032800.

The previous prime is 53312093. The next prime is 53312113. The reversal of 53312111 is 11121335.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11121335 = 5 ⋅2224267.

It is a cyclic number.

It is not a de Polignac number, because 53312111 - 2⁶ = 53312047 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 53312111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53312113) 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, 139370 + ... + 139751.

It is an arithmetic number, because the mean of its divisors is an integer number (13397856).

Almost surely, 2^53312111 is an apocalyptic number.

53312111 is a deficient number, since it is larger than the sum of its proper divisors (279313).

53312111 is a wasteful number, since it uses less digits than its factorization.

53312111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279312.

The product of its digits is 90, while the sum is 17.

The square root of 53312111 is about 7301.5142949939. The cubic root of 53312111 is about 376.3644774779.

Adding to 53312111 its reverse (11121335), we get a palindrome (64433446).

The spelling of 53312111 in words is "fifty-three million, three hundred twelve thousand, one hundred eleven".