56005133 has 4 divisors (see below), whose sum is σ = 56056128. Its totient is φ = 55954140.

The previous prime is 56005129. The next prime is 56005171. The reversal of 56005133 is 33150065.

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 56005133 - 2² = 56005129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56005099 and 56005108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56001133) 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, 23813 + ... + 26058.

It is an arithmetic number, because the mean of its divisors is an integer number (14014032).

Almost surely, 2^56005133 is an apocalyptic number.

It is an amenable number.

56005133 is a deficient number, since it is larger than the sum of its proper divisors (50995).

56005133 is a wasteful number, since it uses less digits than its factorization.

56005133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50994.

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 56005133 is about 7483.6577286779. The cubic root of 56005133 is about 382.5979255732.

Adding to 56005133 its reverse (33150065), we get a palindrome (89155198).

The spelling of 56005133 in words is "fifty-six million, five thousand, one hundred thirty-three".