53388833 has 4 divisors (see below), whose sum is σ = 53454528. Its totient is φ = 53323140.

The previous prime is 53388821. The next prime is 53388887. The reversal of 53388833 is 33888335.

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 53388833 - 2¹⁰ = 53387809 is a prime.

It is a super-3 number, since 3×53388833³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53387833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31613 + ... + 33258.

It is an arithmetic number, because the mean of its divisors is an integer number (13363632).

Almost surely, 2^53388833 is an apocalyptic number.

It is an amenable number.

53388833 is a deficient number, since it is larger than the sum of its proper divisors (65695).

53388833 is an equidigital number, since it uses as much as digits as its factorization.

53388833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65694.

The product of its digits is 207360, while the sum is 41.

The square root of 53388833 is about 7306.7662478007. The cubic root of 53388833 is about 376.5449342529.

The spelling of 53388833 in words is "fifty-three million, three hundred eighty-eight thousand, eight hundred thirty-three".