56770979 has 2 divisors, whose sum is σ = 56770980. Its totient is φ = 56770978.

The previous prime is 56770957. The next prime is 56770991. The reversal of 56770979 is 97907765.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56770979 - 2¹² = 56766883 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (56770949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28385489 + 28385490.

It is an arithmetic number, because the mean of its divisors is an integer number (28385490).

Almost surely, 2^56770979 is an apocalyptic number.

56770979 is a deficient number, since it is larger than the sum of its proper divisors (1).

56770979 is an equidigital number, since it uses as much as digits as its factorization.

56770979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 833490, while the sum is 50.

The square root of 56770979 is about 7534.6518831330. The cubic root of 56770979 is about 384.3339899314. Note that the first 3 decimals are identical.

The spelling of 56770979 in words is "fifty-six million, seven hundred seventy thousand, nine hundred seventy-nine".