56501033 has 4 divisors (see below), whose sum is σ = 57344400. Its totient is φ = 55657668.

The previous prime is 56501023. The next prime is 56501063. The reversal of 56501033 is 33010565.

56501033 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 a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56501033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56501023) 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, 421583 + ... + 421716.

It is an arithmetic number, because the mean of its divisors is an integer number (14336100).

Almost surely, 2^56501033 is an apocalyptic number.

It is an amenable number.

56501033 is a deficient number, since it is larger than the sum of its proper divisors (843367).

56501033 is an equidigital number, since it uses as much as digits as its factorization.

56501033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843366.

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

The square root of 56501033 is about 7516.7169030102. The cubic root of 56501033 is about 383.7238524768.

Adding to 56501033 its reverse (33010565), we get a palindrome (89511598).

The spelling of 56501033 in words is "fifty-six million, five hundred one thousand, thirty-three".