56801520841 has 4 divisors (see below), whose sum is σ = 61170868612. Its totient is φ = 52432173072.

The previous prime is 56801520779. The next prime is 56801520863. The reversal of 56801520841 is 14802510865.

It is a happy number.

56801520841 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14802510865 = 5 ⋅2960502173.

It can be written as a sum of positive squares in 2 ways, for example, as 2938073616 + 53863447225 = 54204^2 + 232085^2 .

It is a cyclic number.

It is not a de Polignac number, because 56801520841 - 2²¹ = 56799423689 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56801520794 and 56801520803.

It is not an unprimeable number, because it can be changed into a prime (56801520641) 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, 2184673866 + ... + 2184673891.

It is an arithmetic number, because the mean of its divisors is an integer number (15292717153).

Almost surely, 2^56801520841 is an apocalyptic number.

It is an amenable number.

56801520841 is a deficient number, since it is larger than the sum of its proper divisors (4369347771).

56801520841 is a wasteful number, since it uses less digits than its factorization.

56801520841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4369347770.

The product of its (nonzero) digits is 76800, while the sum is 40.

The spelling of 56801520841 in words is "fifty-six billion, eight hundred one million, five hundred twenty thousand, eight hundred forty-one".