56146021 has 8 divisors (see below), whose sum is σ = 56848064. Its totient is φ = 55447200.

The previous prime is 56145997. The next prime is 56146037. The reversal of 56146021 is 12064165.

56146021 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 a cyclic number.

It is not a de Polignac number, because 56146021 - 2⁵ = 56145989 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 (56146061) 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, 61450 + ... + 62356.

It is an arithmetic number, because the mean of its divisors is an integer number (7106008).

Almost surely, 2^56146021 is an apocalyptic number.

It is an amenable number.

56146021 is a deficient number, since it is larger than the sum of its proper divisors (702043).

56146021 is a wasteful number, since it uses less digits than its factorization.

56146021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1611.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 56146021 is about 7493.0648602558. The cubic root of 56146021 is about 382.9184814247.

The spelling of 56146021 in words is "fifty-six million, one hundred forty-six thousand, twenty-one".