56777291 has 2 divisors, whose sum is σ = 56777292. Its totient is φ = 56777290.

The previous prime is 56777239. The next prime is 56777309. The reversal of 56777291 is 19277765.

56777291 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56777291 - 2²² = 52582987 is a prime.

It is not a weakly prime, because it can be changed into another prime (56777891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28388645 + 28388646.

It is an arithmetic number, because the mean of its divisors is an integer number (28388646).

Almost surely, 2^56777291 is an apocalyptic number.

56777291 is a deficient number, since it is larger than the sum of its proper divisors (1).

56777291 is an equidigital number, since it uses as much as digits as its factorization.

56777291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 185220, while the sum is 44.

The square root of 56777291 is about 7535.0707362307. The cubic root of 56777291 is about 384.3482332783.

The spelling of 56777291 in words is "fifty-six million, seven hundred seventy-seven thousand, two hundred ninety-one".