56133003 has 4 divisors (see below), whose sum is σ = 74844008. Its totient is φ = 37422000.

The previous prime is 56132981. The next prime is 56133019. The reversal of 56133003 is 30033165.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 56133003 - 2⁹ = 56132491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56133083) 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, 9355498 + ... + 9355503.

It is an arithmetic number, because the mean of its divisors is an integer number (18711002).

Almost surely, 2^56133003 is an apocalyptic number.

56133003 is a deficient number, since it is larger than the sum of its proper divisors (18711005).

56133003 is a wasteful number, since it uses less digits than its factorization.

56133003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18711004.

The product of its (nonzero) digits is 810, while the sum is 21.

The square root of 56133003 is about 7492.1961399846. The cubic root of 56133003 is about 382.8888846815. Note that the first 5 decimals are identical.

Adding to 56133003 its reverse (30033165), we get a palindrome (86166168).

The spelling of 56133003 in words is "fifty-six million, one hundred thirty-three thousand, three".