56773345 has 4 divisors (see below), whose sum is σ = 68128020. Its totient is φ = 45418672.

The previous prime is 56773333. The next prime is 56773357. The reversal of 56773345 is 54337765.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54337765 = 5 ⋅10867553.

It is an interprime number because it is at equal distance from previous prime (56773333) and next prime (56773357).

It can be written as a sum of positive squares in 2 ways, for example, as 32251041 + 24522304 = 5679^2 + 4952^2 .

It is a cyclic number.

It is not a de Polignac number, because 56773345 - 2¹³ = 56765153 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 56773298 and 56773307.

It is an unprimeable number.

It is an upside-down number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5677330 + ... + 5677339.

It is an arithmetic number, because the mean of its divisors is an integer number (17032005).

Almost surely, 2^56773345 is an apocalyptic number.

It is an amenable number.

56773345 is a deficient number, since it is larger than the sum of its proper divisors (11354675).

56773345 is a wasteful number, since it uses less digits than its factorization.

56773345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11354674.

The product of its digits is 264600, while the sum is 40.

The square root of 56773345 is about 7534.8088894145. The cubic root of 56773345 is about 384.3393290536.

The spelling of 56773345 in words is "fifty-six million, seven hundred seventy-three thousand, three hundred forty-five".