56517103 has 4 divisors (see below), whose sum is σ = 57475080. Its totient is φ = 55559128.

The previous prime is 56517101. The next prime is 56517121. The reversal of 56517103 is 30171565.

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

It is a cyclic number.

It is not a de Polignac number, because 56517103 - 2¹ = 56517101 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 (56517101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 478900 + ... + 479017.

It is an arithmetic number, because the mean of its divisors is an integer number (14368770).

Almost surely, 2^56517103 is an apocalyptic number.

56517103 is a deficient number, since it is larger than the sum of its proper divisors (957977).

56517103 is an equidigital number, since it uses as much as digits as its factorization.

56517103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 957976.

The product of its (nonzero) digits is 3150, while the sum is 28.

The square root of 56517103 is about 7517.7857777407. The cubic root of 56517103 is about 383.7602285538.

Adding to 56517103 its reverse (30171565), we get a palindrome (86688668).

The spelling of 56517103 in words is "fifty-six million, five hundred seventeen thousand, one hundred three".