2553569 has 4 divisors (see below), whose sum is σ = 2572080. Its totient is φ = 2535060.

The previous prime is 2553559. The next prime is 2553599. The reversal of 2553569 is 9653552.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2553569 is a prime.

It is a super-2 number, since 2×2553569² = 13041429275522, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2¹¹ + 5 + 5³ + 3¹² + 5⁹ + 6⁵ + 9⁵ .

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2553539) 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 in 3 ways as a sum of consecutive naturals, for example, 9047 + ... + 9324.

It is an arithmetic number, because the mean of its divisors is an integer number (643020).

2^2553569 is an apocalyptic number.

It is an amenable number.

2553569 is a deficient number, since it is larger than the sum of its proper divisors (18511).

2553569 is a wasteful number, since it uses less digits than its factorization.

2553569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18510.

The product of its digits is 40500, while the sum is 35.

The square root of 2553569 is about 1597.9890487735. The cubic root of 2553569 is about 136.6834291027.

Adding to 2553569 its sum of digits (35), we get a square (2553604 = 1598²).

The spelling of 2553569 in words is "two million, five hundred fifty-three thousand, five hundred sixty-nine".