56081143 has 8 divisors (see below), whose sum is σ = 57223520. Its totient is φ = 54946080.

The previous prime is 56081119. The next prime is 56081167. The reversal of 56081143 is 34118065.

It is an interprime number because it is at equal distance from previous prime (56081119) and next prime (56081167).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56081143 - 2⁹ = 56080631 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 (56081173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15238 + ... + 18556.

It is an arithmetic number, because the mean of its divisors is an integer number (7152940).

Almost surely, 2^56081143 is an apocalyptic number.

56081143 is a deficient number, since it is larger than the sum of its proper divisors (1142377).

56081143 is a wasteful number, since it uses less digits than its factorization.

56081143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3657.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 56081143 is about 7488.7344057591. The cubic root of 56081143 is about 382.7709342503.

The spelling of 56081143 in words is "fifty-six million, eighty-one thousand, one hundred forty-three".