56276977 has 2 divisors, whose sum is σ = 56276978. Its totient is φ = 56276976.

The previous prime is 56276959. The next prime is 56276989. The reversal of 56276977 is 77967265.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32764176 + 23512801 = 5724^2 + 4849^2 .

It is a cyclic number.

It is not a de Polignac number, because 56276977 - 2¹¹ = 56274929 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56276977.

It is not a weakly prime, because it can be changed into another prime (56273977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28138488 + 28138489.

It is an arithmetic number, because the mean of its divisors is an integer number (28138489).

Almost surely, 2^56276977 is an apocalyptic number.

It is an amenable number.

56276977 is a deficient number, since it is larger than the sum of its proper divisors (1).

56276977 is an equidigital number, since it uses as much as digits as its factorization.

56276977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1111320, while the sum is 49.

The square root of 56276977 is about 7501.7982510862. The cubic root of 56276977 is about 383.2159589394.

The spelling of 56276977 in words is "fifty-six million, two hundred seventy-six thousand, nine hundred seventy-seven".