56321161 has 8 divisors (see below), whose sum is σ = 62745480. Its totient is φ = 50195712.

The previous prime is 56321147. The next prime is 56321171. The reversal of 56321161 is 16112365.

56321161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 11431161 + 44890000 = 3381^2 + 6700^2 .

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 56321161 - 2⁵ = 56321129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56321101) 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, 74320 + ... + 75073.

It is an arithmetic number, because the mean of its divisors is an integer number (7843185).

Almost surely, 2^56321161 is an apocalyptic number.

It is an amenable number.

56321161 is a deficient number, since it is larger than the sum of its proper divisors (6424319).

56321161 is a wasteful number, since it uses less digits than its factorization.

56321161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149435.

The product of its digits is 1080, while the sum is 25.

The square root of 56321161 is about 7504.7425672038. The cubic root of 56321161 is about 383.3162224666.

The spelling of 56321161 in words is "fifty-six million, three hundred twenty-one thousand, one hundred sixty-one".