2561595 has 8 divisors (see below), whose sum is σ = 4098576. Its totient is φ = 1366176.

The previous prime is 2561593. The next prime is 2561627. The reversal of 2561595 is 5951652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2561595 - 2¹ = 2561593 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2561593) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85372 + ... + 85401.

It is an arithmetic number, because the mean of its divisors is an integer number (512322).

2^2561595 is an apocalyptic number.

2561595 is a deficient number, since it is larger than the sum of its proper divisors (1536981).

2561595 is a wasteful number, since it uses less digits than its factorization.

2561595 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170781.

The product of its digits is 13500, while the sum is 33.

The square root of 2561595 is about 1600.4983598867. The cubic root of 2561595 is about 136.8264803737.

The spelling of 2561595 in words is "two million, five hundred sixty-one thousand, five hundred ninety-five".