56105101 has 4 divisors (see below), whose sum is σ = 60420892. Its totient is φ = 51789312.

The previous prime is 56105087. The next prime is 56105131. The reversal of 56105101 is 10150165.

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

It can be written as a sum of positive squares in 2 ways, for example, as 16402500 + 39702601 = 4050^2 + 6301^2 .

It is a cyclic number.

It is not a de Polignac number, because 56105101 - 2²⁵ = 22550669 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 (56105131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2157876 + ... + 2157901.

It is an arithmetic number, because the mean of its divisors is an integer number (15105223).

Almost surely, 2^56105101 is an apocalyptic number.

It is an amenable number.

56105101 is a deficient number, since it is larger than the sum of its proper divisors (4315791).

56105101 is a wasteful number, since it uses less digits than its factorization.

56105101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4315790.

The product of its (nonzero) digits is 150, while the sum is 19.

The square root of 56105101 is about 7490.3338376871. Note that the first 3 decimals coincide. The cubic root of 56105101 is about 382.8254333801.

Adding to 56105101 its reverse (10150165), we get a palindrome (66255266).

The spelling of 56105101 in words is "fifty-six million, one hundred five thousand, one hundred one".