56161103 has 4 divisors (see below), whose sum is σ = 57530928. Its totient is φ = 54791280.

The previous prime is 56161087. The next prime is 56161121. The reversal of 56161103 is 30116165.

It is a happy number.

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 56161103 - 2⁴ = 56161087 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 (56161123) 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, 684851 + ... + 684932.

It is an arithmetic number, because the mean of its divisors is an integer number (14382732).

Almost surely, 2^56161103 is an apocalyptic number.

56161103 is a deficient number, since it is larger than the sum of its proper divisors (1369825).

56161103 is a wasteful number, since it uses less digits than its factorization.

56161103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1369824.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 56161103 is about 7494.0711899474. The cubic root of 56161103 is about 382.9527650029.

Adding to 56161103 its reverse (30116165), we get a palindrome (86277268).

The spelling of 56161103 in words is "fifty-six million, one hundred sixty-one thousand, one hundred three".