56765677 has 2 divisors, whose sum is σ = 56765678. Its totient is φ = 56765676.

The previous prime is 56765651. The next prime is 56765693. The reversal of 56765677 is 77656765.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54967396 + 1798281 = 7414^2 + 1341^2 .

It is a cyclic number.

It is not a de Polignac number, because 56765677 - 2¹⁵ = 56732909 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56765677.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56765617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28382838 + 28382839.

It is an arithmetic number, because the mean of its divisors is an integer number (28382839).

Almost surely, 2^56765677 is an apocalyptic number.

It is an amenable number.

56765677 is a deficient number, since it is larger than the sum of its proper divisors (1).

56765677 is an equidigital number, since it uses as much as digits as its factorization.

56765677 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1852200, while the sum is 49.

The square root of 56765677 is about 7534.3000338452. The cubic root of 56765677 is about 384.3220248847.

The spelling of 56765677 in words is "fifty-six million, seven hundred sixty-five thousand, six hundred seventy-seven".