56841791 has 4 divisors (see below), whose sum is σ = 57139584. Its totient is φ = 56544000.

The previous prime is 56841779. The next prime is 56841793. The reversal of 56841791 is 19714865.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56841791 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 (56841793) 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, 148610 + ... + 148991.

It is an arithmetic number, because the mean of its divisors is an integer number (14284896).

Almost surely, 2^56841791 is an apocalyptic number.

56841791 is a deficient number, since it is larger than the sum of its proper divisors (297793).

56841791 is a wasteful number, since it uses less digits than its factorization.

56841791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297792.

The product of its digits is 60480, while the sum is 41.

The square root of 56841791 is about 7539.3495077493. The cubic root of 56841791 is about 384.4937203153.

The spelling of 56841791 in words is "fifty-six million, eight hundred forty-one thousand, seven hundred ninety-one".