56108181 has 8 divisors (see below), whose sum is σ = 75651840. Its totient is φ = 36984992.

The previous prime is 56108153. The next prime is 56108231. The reversal of 56108181 is 18180165.

It is a happy number.

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 56108181 - 2⁵ = 56108149 is a prime.

It is a super-2 number, since 2×56108181² = 6296255950257522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56108081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104805 + ... + 105338.

It is an arithmetic number, because the mean of its divisors is an integer number (9456480).

Almost surely, 2^56108181 is an apocalyptic number.

It is an amenable number.

56108181 is a deficient number, since it is larger than the sum of its proper divisors (19543659).

56108181 is a wasteful number, since it uses less digits than its factorization.

56108181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210235.

The product of its (nonzero) digits is 1920, while the sum is 30.

The square root of 56108181 is about 7490.5394331784. The cubic root of 56108181 is about 382.8324385705.

The spelling of 56108181 in words is "fifty-six million, one hundred eight thousand, one hundred eighty-one".