56722783345 has 4 divisors (see below), whose sum is σ = 68067340020. Its totient is φ = 45378226672.

The previous prime is 56722783343. The next prime is 56722783349. The reversal of 56722783345 is 54338722765.

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 34349803569 + 22372979776 = 185337^2 + 149576^2 .

It is a cyclic number.

It is not a de Polignac number, because 56722783345 - 2¹ = 56722783343 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56722783292 and 56722783301.

It is not an unprimeable number, because it can be changed into a prime (56722783343) 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, 5672278330 + ... + 5672278339.

It is an arithmetic number, because the mean of its divisors is an integer number (17016835005).

Almost surely, 2^56722783345 is an apocalyptic number.

It is an amenable number.

56722783345 is a deficient number, since it is larger than the sum of its proper divisors (11344556675).

56722783345 is a wasteful number, since it uses less digits than its factorization.

56722783345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11344556674.

The product of its digits is 8467200, while the sum is 52.

The spelling of 56722783345 in words is "fifty-six billion, seven hundred twenty-two million, seven hundred eighty-three thousand, three hundred forty-five".