2656259 has 4 divisors (see below), whose sum is σ = 2670216. Its totient is φ = 2642304.

The previous prime is 2656243. The next prime is 2656261. The reversal of 2656259 is 9526562.

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

It is a cyclic number.

It is not a de Polignac number, because 2656259 - 2⁴ = 2656243 is a prime.

It is a d-powerful number, because it can be written as 2¹⁸ + 6⁴ + 5² + 6⁷ + 2²¹ + 5⁶ + 9² .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2656229) 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, 6689 + ... + 7074.

It is an arithmetic number, because the mean of its divisors is an integer number (667554).

2^2656259 is an apocalyptic number.

2656259 is a deficient number, since it is larger than the sum of its proper divisors (13957).

2656259 is a wasteful number, since it uses less digits than its factorization.

2656259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13956.

The product of its digits is 32400, while the sum is 35.

The square root of 2656259 is about 1629.8033623723. The cubic root of 2656259 is about 138.4916128326.

The spelling of 2656259 in words is "two million, six hundred fifty-six thousand, two hundred fifty-nine".