56381101 has 4 divisors (see below), whose sum is σ = 64435552. Its totient is φ = 48326652.

The previous prime is 56381093. The next prime is 56381123. The reversal of 56381101 is 10118365.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56381101 - 2³ = 56381093 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 (56381161) 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, 4027215 + ... + 4027228.

It is an arithmetic number, because the mean of its divisors is an integer number (16108888).

Almost surely, 2^56381101 is an apocalyptic number.

It is an amenable number.

56381101 is a deficient number, since it is larger than the sum of its proper divisors (8054451).

56381101 is an equidigital number, since it uses as much as digits as its factorization.

56381101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8054450.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 56381101 is about 7508.7349800083. The cubic root of 56381101 is about 383.4521561490.

Adding to 56381101 its reverse (10118365), we get a palindrome (66499466).

The spelling of 56381101 in words is "fifty-six million, three hundred eighty-one thousand, one hundred one".