56440400241 has 4 divisors (see below), whose sum is σ = 75253866992. Its totient is φ = 37626933492.

The previous prime is 56440400153. The next prime is 56440400249. The reversal of 56440400241 is 14200404465.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 56440400241 - 2¹⁰ = 56440399217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56440400199 and 56440400208.

It is not an unprimeable number, because it can be changed into a prime (56440400249) 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, 9406733371 + ... + 9406733376.

It is an arithmetic number, because the mean of its divisors is an integer number (18813466748).

Almost surely, 2^56440400241 is an apocalyptic number.

It is an amenable number.

56440400241 is a deficient number, since it is larger than the sum of its proper divisors (18813466751).

56440400241 is a wasteful number, since it uses less digits than its factorization.

56440400241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18813466750.

The product of its (nonzero) digits is 15360, while the sum is 30.

The spelling of 56440400241 in words is "fifty-six billion, four hundred forty million, four hundred thousand, two hundred forty-one".