2057569 has 2 divisors, whose sum is σ = 2057570. Its totient is φ = 2057568.

The previous prime is 2057543. The next prime is 2057597. The reversal of 2057569 is 9657502.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1595169 + 462400 = 1263^2 + 680^2 .

It is a cyclic number.

It is not a de Polignac number, because 2057569 - 2⁵ = 2057537 is a prime.

It is a super-2 number, since 2×2057569² = 8467180379522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2057599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1028784 + 1028785.

It is an arithmetic number, because the mean of its divisors is an integer number (1028785).

2^2057569 is an apocalyptic number.

It is an amenable number.

2057569 is a deficient number, since it is larger than the sum of its proper divisors (1).

2057569 is an equidigital number, since it uses as much as digits as its factorization.

2057569 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 2057569 is about 1434.4228804645. The cubic root of 2057569 is about 127.1895612981.

The spelling of 2057569 in words is "two million, fifty-seven thousand, five hundred sixty-nine".