56561327 has 4 divisors (see below), whose sum is σ = 56639856. Its totient is φ = 56482800.

The previous prime is 56561321. The next prime is 56561341. The reversal of 56561327 is 72316565.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56561327 - 2¹² = 56557231 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 (56561321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38174 + ... + 39627.

It is an arithmetic number, because the mean of its divisors is an integer number (14159964).

Almost surely, 2^56561327 is an apocalyptic number.

56561327 is a deficient number, since it is larger than the sum of its proper divisors (78529).

56561327 is an equidigital number, since it uses as much as digits as its factorization.

56561327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78528.

The product of its digits is 37800, while the sum is 35.

The square root of 56561327 is about 7520.7264941626. The cubic root of 56561327 is about 383.8602984838.

The spelling of 56561327 in words is "fifty-six million, five hundred sixty-one thousand, three hundred twenty-seven".