2569601 has 4 divisors (see below), whose sum is σ = 2720772. Its totient is φ = 2418432.

The previous prime is 2569577. The next prime is 2569607. The reversal of 2569601 is 1069652.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1890625 + 678976 = 1375^2 + 824^2 .

It is a cyclic number.

It is not a de Polignac number, because 2569601 - 2¹⁴ = 2553217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2569607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75560 + ... + 75593.

It is an arithmetic number, because the mean of its divisors is an integer number (680193).

2^2569601 is an apocalyptic number.

It is an amenable number.

2569601 is a deficient number, since it is larger than the sum of its proper divisors (151171).

2569601 is a wasteful number, since it uses less digits than its factorization.

2569601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151170.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 2569601 is about 1602.9975046768. The cubic root of 2569601 is about 136.9688777939.

The spelling of 2569601 in words is "two million, five hundred sixty-nine thousand, six hundred one".