57193649 has 2 divisors, whose sum is σ = 57193650. Its totient is φ = 57193648.

The previous prime is 57193607. The next prime is 57193657. The reversal of 57193649 is 94639175.

57193649 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., 56325025 + 868624 = 7505^2 + 932^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57193649 is a prime.

It is a super-2 number, since 2×57193649² = 6542226971870402, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (57193949) 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, 28596824 + 28596825.

It is an arithmetic number, because the mean of its divisors is an integer number (28596825).

Almost surely, 2^57193649 is an apocalyptic number.

It is an amenable number.

57193649 is a deficient number, since it is larger than the sum of its proper divisors (1).

57193649 is an equidigital number, since it uses as much as digits as its factorization.

57193649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 204120, while the sum is 44.

The square root of 57193649 is about 7562.6482795381. The cubic root of 57193649 is about 385.2854441317.

The spelling of 57193649 in words is "fifty-seven million, one hundred ninety-three thousand, six hundred forty-nine".