57244669 has 2 divisors, whose sum is σ = 57244670. Its totient is φ = 57244668.

The previous prime is 57244667. The next prime is 57244687. The reversal of 57244669 is 96644275.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50552100 + 6692569 = 7110^2 + 2587^2 .

It is a cyclic number.

It is not a de Polignac number, because 57244669 - 2¹ = 57244667 is a prime.

It is a super-2 number, since 2×57244669² = 6553904257839122, which contains 22 as substring.

Together with 57244667, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57244667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28622334 + 28622335.

It is an arithmetic number, because the mean of its divisors is an integer number (28622335).

Almost surely, 2^57244669 is an apocalyptic number.

It is an amenable number.

57244669 is a deficient number, since it is larger than the sum of its proper divisors (1).

57244669 is an equidigital number, since it uses as much as digits as its factorization.

57244669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 43.

The square root of 57244669 is about 7566.0206846135. The cubic root of 57244669 is about 385.3999756194.

The spelling of 57244669 in words is "fifty-seven million, two hundred forty-four thousand, six hundred sixty-nine".