57277019 has 2 divisors, whose sum is σ = 57277020. Its totient is φ = 57277018.

The previous prime is 57277009. The next prime is 57277021. The reversal of 57277019 is 91077275.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57277019 - 2⁸ = 57276763 is a prime.

It is a super-2 number, since 2×57277019² = 6561313811052722, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 57277021, 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 (57277009) 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, 28638509 + 28638510.

It is an arithmetic number, because the mean of its divisors is an integer number (28638510).

Almost surely, 2^57277019 is an apocalyptic number.

57277019 is a deficient number, since it is larger than the sum of its proper divisors (1).

57277019 is an equidigital number, since it uses as much as digits as its factorization.

57277019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30870, while the sum is 38.

The square root of 57277019 is about 7568.1582303755. The cubic root of 57277019 is about 385.4725607852.

The spelling of 57277019 in words is "fifty-seven million, two hundred seventy-seven thousand, nineteen".