2613256 has 8 divisors (see below), whose sum is σ = 4899870. Its totient is φ = 1306624.

The previous prime is 2613229. The next prime is 2613313. The reversal of 2613256 is 6523162.

It can be written as a sum of positive squares in only one way, i.e., 2353156 + 260100 = 1534^2 + 510^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 2613256.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163321 + ... + 163336.

2^2613256 is an apocalyptic number.

It is an amenable number.

2613256 is a deficient number, since it is larger than the sum of its proper divisors (2286614).

2613256 is a wasteful number, since it uses less digits than its factorization.

2613256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326663 (or 326659 counting only the distinct ones).

The product of its digits is 2160, while the sum is 25.

The square root of 2613256 is about 1616.5568347571. The cubic root of 2613256 is about 137.7401818644.

The spelling of 2613256 in words is "two million, six hundred thirteen thousand, two hundred fifty-six".