56011303 has 4 divisors (see below), whose sum is σ = 57525160. Its totient is φ = 54497448.

The previous prime is 56011283. The next prime is 56011309. The reversal of 56011303 is 30311065.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30311065 = 5 ⋅6062213.

It is not a de Polignac number, because 56011303 - 2⁵ = 56011271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56011309) 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, 756873 + ... + 756946.

It is an arithmetic number, because the mean of its divisors is an integer number (14381290).

Almost surely, 2^56011303 is an apocalyptic number.

56011303 is a deficient number, since it is larger than the sum of its proper divisors (1513857).

56011303 is a wasteful number, since it uses less digits than its factorization.

56011303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1513856.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 56011303 is about 7484.0699488981. The cubic root of 56011303 is about 382.6119751338.

Adding to 56011303 its reverse (30311065), we get a palindrome (86322368).

The spelling of 56011303 in words is "fifty-six million, eleven thousand, three hundred three".