56801383945 has 4 divisors (see below), whose sum is σ = 68161660740. Its totient is φ = 45441107152.

The previous prime is 56801383897. The next prime is 56801383949. The reversal of 56801383945 is 54938310865.

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 14695985529 + 42105398416 = 121227^2 + 205196^2 .

It is a cyclic number.

It is not a de Polignac number, because 56801383945 - 2²⁷ = 56667166217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56801383892 and 56801383901.

It is not an unprimeable number, because it can be changed into a prime (56801383949) 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, 5680138390 + ... + 5680138399.

It is an arithmetic number, because the mean of its divisors is an integer number (17040415185).

Almost surely, 2^56801383945 is an apocalyptic number.

It is an amenable number.

56801383945 is a deficient number, since it is larger than the sum of its proper divisors (11360276795).

56801383945 is a wasteful number, since it uses less digits than its factorization.

56801383945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11360276794.

The product of its (nonzero) digits is 3110400, while the sum is 52.

The spelling of 56801383945 in words is "fifty-six billion, eight hundred one million, three hundred eighty-three thousand, nine hundred forty-five".