56116503 has 8 divisors (see below), whose sum is σ = 83135600. Its totient is φ = 37410984.

The previous prime is 56116477. The next prime is 56116513. The reversal of 56116503 is 30561165.

It is a happy number.

56116503 is a `hidden beast` number, since 5 + 6 + 1 + 1 + 650 + 3 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-56116503 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 2078389 = 56116503 / (5 + 6 + 1 + 1 + 6 + 5 + 0 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56116513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1039168 + ... + 1039221.

It is an arithmetic number, because the mean of its divisors is an integer number (10391950).

Almost surely, 2^56116503 is an apocalyptic number.

56116503 is a deficient number, since it is larger than the sum of its proper divisors (27019097).

56116503 is a wasteful number, since it uses less digits than its factorization.

56116503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2078398 (or 2078392 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 56116503 is about 7491.0949132954. The cubic root of 56116503 is about 382.8513649493.

Adding to 56116503 its reverse (30561165), we get a palindrome (86677668).

The spelling of 56116503 in words is "fifty-six million, one hundred sixteen thousand, five hundred three".