2563896 has 32 divisors (see below), whose sum is σ = 6449040. Its totient is φ = 849408.

The previous prime is 2563877. The next prime is 2563901. The reversal of 2563896 is 6983652.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7440 + ... + 7776.

2^2563896 is an apocalyptic number.

It is an amenable number.

2563896 is an abundant number, since it is smaller than the sum of its proper divisors (3885144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2563896 is a wasteful number, since it uses less digits than its factorization.

2563896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663 (or 659 counting only the distinct ones).

The product of its digits is 77760, while the sum is 39.

The square root of 2563896 is about 1601.2170371314. The cubic root of 2563896 is about 136.8674370834.

The spelling of 2563896 in words is "two million, five hundred sixty-three thousand, eight hundred ninety-six".