56321849 has 4 divisors (see below), whose sum is σ = 57245220. Its totient is φ = 55398480.

The previous prime is 56321843. The next prime is 56321893. The reversal of 56321849 is 94812365.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94812365 = 5 ⋅18962473.

It can be written as a sum of positive squares in 2 ways, for example, as 4020025 + 52301824 = 2005^2 + 7232^2 .

It is a cyclic number.

It is not a de Polignac number, because 56321849 - 2⁸ = 56321593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56321843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 461594 + ... + 461715.

It is an arithmetic number, because the mean of its divisors is an integer number (14311305).

Almost surely, 2^56321849 is an apocalyptic number.

It is an amenable number.

56321849 is a deficient number, since it is larger than the sum of its proper divisors (923371).

56321849 is an equidigital number, since it uses as much as digits as its factorization.

56321849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 923370.

The product of its digits is 51840, while the sum is 38.

The square root of 56321849 is about 7504.7884047453. The cubic root of 56321849 is about 383.3177832802.

The spelling of 56321849 in words is "fifty-six million, three hundred twenty-one thousand, eight hundred forty-nine".