53355613 has 4 divisors (see below), whose sum is σ = 53393788. Its totient is φ = 53317440.

The previous prime is 53355583. The next prime is 53355623. The reversal of 53355613 is 31655335.

It is a happy number.

53355613 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: 31655335 = 5 ⋅6331067.

It can be written as a sum of positive squares in 2 ways, for example, as 22686169 + 30669444 = 4763^2 + 5538^2 .

It is a cyclic number.

It is not a de Polignac number, because 53355613 - 2²⁵ = 19801181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53355623) 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, 16908 + ... + 19813.

It is an arithmetic number, because the mean of its divisors is an integer number (13348447).

Almost surely, 2^53355613 is an apocalyptic number.

It is an amenable number.

53355613 is a deficient number, since it is larger than the sum of its proper divisors (38175).

53355613 is a wasteful number, since it uses less digits than its factorization.

53355613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38174.

The product of its digits is 20250, while the sum is 31.

The square root of 53355613 is about 7304.4926586314. The cubic root of 53355613 is about 376.4668191780.

The spelling of 53355613 in words is "fifty-three million, three hundred fifty-five thousand, six hundred thirteen".