2049569 has 2 divisors, whose sum is σ = 2049570. Its totient is φ = 2049568.

The previous prime is 2049547. The next prime is 2049577. The reversal of 2049569 is 9659402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1658944 + 390625 = 1288^2 + 625^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2049569 is a prime.

It is a super-2 number, since 2×2049569² = 8401466171522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2049589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1024784 + 1024785.

It is an arithmetic number, because the mean of its divisors is an integer number (1024785).

2^2049569 is an apocalyptic number.

It is an amenable number.

2049569 is a deficient number, since it is larger than the sum of its proper divisors (1).

2049569 is an equidigital number, since it uses as much as digits as its factorization.

2049569 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 2049569 is about 1431.6315866870. The cubic root of 2049569 is about 127.0245059867.

The spelling of 2049569 in words is "two million, forty-nine thousand, five hundred sixty-nine".