56773021 has 8 divisors (see below), whose sum is σ = 57435840. Its totient is φ = 56114112.

The previous prime is 56773001. The next prime is 56773027. The reversal of 56773021 is 12037765.

56773021 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 56773021 - 2¹⁵ = 56740253 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 (56773027) 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, 35781 + ... + 37333.

It is an arithmetic number, because the mean of its divisors is an integer number (7179480).

Almost surely, 2^56773021 is an apocalyptic number.

It is an amenable number.

56773021 is a deficient number, since it is larger than the sum of its proper divisors (662819).

56773021 is a wasteful number, since it uses less digits than its factorization.

56773021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1955.

The product of its (nonzero) digits is 8820, while the sum is 31.

The square root of 56773021 is about 7534.7873891703. The cubic root of 56773021 is about 384.3385979231.

The spelling of 56773021 in words is "fifty-six million, seven hundred seventy-three thousand, twenty-one".