56561470241 has 4 divisors (see below), whose sum is σ = 56563930500. Its totient is φ = 56559009984.

The previous prime is 56561470201. The next prime is 56561470243. The reversal of 56561470241 is 14207416565.

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

It can be written as a sum of positive squares in 2 ways, for example, as 15228547216 + 41332923025 = 123404^2 + 203305^2 .

It is a cyclic number.

It is not a de Polignac number, because 56561470241 - 2¹⁸ = 56561208097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56561470243) 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, 1195316 + ... + 1241733.

It is an arithmetic number, because the mean of its divisors is an integer number (14140982625).

Almost surely, 2^56561470241 is an apocalyptic number.

It is an amenable number.

56561470241 is a deficient number, since it is larger than the sum of its proper divisors (2460259).

56561470241 is a wasteful number, since it uses less digits than its factorization.

56561470241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2460258.

The product of its (nonzero) digits is 201600, while the sum is 41.

The spelling of 56561470241 in words is "fifty-six billion, five hundred sixty-one million, four hundred seventy thousand, two hundred forty-one".