56018841 has 4 divisors (see below), whose sum is σ = 74691792. Its totient is φ = 37345892.

The previous prime is 56018839. The next prime is 56018849. The reversal of 56018841 is 14881065.

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 56018841 - 2¹ = 56018839 is a prime.

It is a super-2 number, since 2×56018841² = 6276221093966562, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56018849) 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, 9336471 + ... + 9336476.

It is an arithmetic number, because the mean of its divisors is an integer number (18672948).

Almost surely, 2^56018841 is an apocalyptic number.

It is an amenable number.

56018841 is a deficient number, since it is larger than the sum of its proper divisors (18672951).

56018841 is a wasteful number, since it uses less digits than its factorization.

56018841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18672950.

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 56018841 is about 7484.5735349451. The cubic root of 56018841 is about 382.6291383344.

The spelling of 56018841 in words is "fifty-six million, eighteen thousand, eight hundred forty-one".