56776337 has 2 divisors, whose sum is σ = 56776338. Its totient is φ = 56776336.

The previous prime is 56776333. The next prime is 56776339. The reversal of 56776337 is 73367765.

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., 50140561 + 6635776 = 7081^2 + 2576^2 .

It is a cyclic number.

It is not a de Polignac number, because 56776337 - 2² = 56776333 is a prime.

Together with 56776339, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (56776333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28388168 + 28388169.

It is an arithmetic number, because the mean of its divisors is an integer number (28388169).

Almost surely, 2^56776337 is an apocalyptic number.

It is an amenable number.

56776337 is a deficient number, since it is larger than the sum of its proper divisors (1).

56776337 is an equidigital number, since it uses as much as digits as its factorization.

56776337 is an evil number, because the sum of its binary digits is even.

The product of its digits is 555660, while the sum is 44.

The square root of 56776337 is about 7535.0074319804. The cubic root of 56776337 is about 384.3460805968.

The spelling of 56776337 in words is "fifty-six million, seven hundred seventy-six thousand, three hundred thirty-seven".