57222769 has 2 divisors, whose sum is σ = 57222770. Its totient is φ = 57222768.

The previous prime is 57222733. The next prime is 57222791. The reversal of 57222769 is 96722275.

57222769 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 can be written as a sum of positive squares in only one way, i.e., 57153600 + 69169 = 7560^2 + 263^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57222769 is a prime.

It is a super-2 number, since 2×57222769² = 6548890584054722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (57222709) 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, 28611384 + 28611385.

It is an arithmetic number, because the mean of its divisors is an integer number (28611385).

Almost surely, 2^57222769 is an apocalyptic number.

It is an amenable number.

57222769 is a deficient number, since it is larger than the sum of its proper divisors (1).

57222769 is an equidigital number, since it uses as much as digits as its factorization.

57222769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105840, while the sum is 40.

The square root of 57222769 is about 7564.5732860486. The cubic root of 57222769 is about 385.3508220698.

The spelling of 57222769 in words is "fifty-seven million, two hundred twenty-two thousand, seven hundred sixty-nine".