56133533 has 4 divisors (see below), whose sum is σ = 57439008. Its totient is φ = 54828060.

The previous prime is 56133527. The next prime is 56133587. The reversal of 56133533 is 33533165.

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 56133533 - 2²⁰ = 55084957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56133496 and 56133505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56133503) 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, 652673 + ... + 652758.

It is an arithmetic number, because the mean of its divisors is an integer number (14359752).

Almost surely, 2^56133533 is an apocalyptic number.

It is an amenable number.

56133533 is a deficient number, since it is larger than the sum of its proper divisors (1305475).

56133533 is a wasteful number, since it uses less digits than its factorization.

56133533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1305474.

The product of its digits is 12150, while the sum is 29.

The square root of 56133533 is about 7492.2315100376. The cubic root of 56133533 is about 382.8900897388.

Adding to 56133533 its reverse (33533165), we get a palindrome (89666698).

The spelling of 56133533 in words is "fifty-six million, one hundred thirty-three thousand, five hundred thirty-three".