57351649 has 2 divisors, whose sum is σ = 57351650. Its totient is φ = 57351648.

The previous prime is 57351631. The next prime is 57351653. The reversal of 57351649 is 94615375.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55234624 + 2117025 = 7432^2 + 1455^2 .

It is a cyclic number.

It is not a de Polignac number, because 57351649 - 2⁷ = 57351521 is a prime.

It is not a weakly prime, because it can be changed into another prime (57351449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28675824 + 28675825.

It is an arithmetic number, because the mean of its divisors is an integer number (28675825).

Almost surely, 2^57351649 is an apocalyptic number.

It is an amenable number.

57351649 is a deficient number, since it is larger than the sum of its proper divisors (1).

57351649 is an equidigital number, since it uses as much as digits as its factorization.

57351649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 113400, while the sum is 40.

The square root of 57351649 is about 7573.0871512218. The cubic root of 57351649 is about 385.6399073188.

The spelling of 57351649 in words is "fifty-seven million, three hundred fifty-one thousand, six hundred forty-nine".