56018121 has 8 divisors (see below), whose sum is σ = 76428000. Its totient is φ = 36476832.

The previous prime is 56018117. The next prime is 56018129. The reversal of 56018121 is 12181065.

56018121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 56018121 - 2² = 56018117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56018091 and 56018100.

It is not an unprimeable number, because it can be changed into a prime (56018129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216996 + ... + 217253.

It is an arithmetic number, because the mean of its divisors is an integer number (9553500).

Almost surely, 2^56018121 is an apocalyptic number.

It is an amenable number.

56018121 is a deficient number, since it is larger than the sum of its proper divisors (20409879).

56018121 is a wasteful number, since it uses less digits than its factorization.

56018121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434295.

The product of its (nonzero) digits is 480, while the sum is 24.

The square root of 56018121 is about 7484.5254358576. The cubic root of 56018121 is about 382.6274990398.

Adding to 56018121 its reverse (12181065), we get a palindrome (68199186).

It can be divided in two parts, 560 and 18121, that added together give a palindrome (18681).

The spelling of 56018121 in words is "fifty-six million, eighteen thousand, one hundred twenty-one".