2555569 has 2 divisors, whose sum is σ = 2555570. Its totient is φ = 2555568.

The previous prime is 2555561. The next prime is 2555587. The reversal of 2555569 is 9655552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1595169 + 960400 = 1263^2 + 980^2 .

It is a cyclic number.

It is not a de Polignac number, because 2555569 - 2³ = 2555561 is a prime.

It is a super-2 number, since 2×2555569² = 13061865827522, which contains 22 as substring.

2555569 is a lucky number.

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (2555561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1277784 + 1277785.

It is an arithmetic number, because the mean of its divisors is an integer number (1277785).

2^2555569 is an apocalyptic number.

It is an amenable number.

2555569 is a deficient number, since it is larger than the sum of its proper divisors (1).

2555569 is an equidigital number, since it uses as much as digits as its factorization.

2555569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 67500, while the sum is 37.

The square root of 2555569 is about 1598.6147128061. The cubic root of 2555569 is about 136.7191040764.

The spelling of 2555569 in words is "two million, five hundred fifty-five thousand, five hundred sixty-nine".