2563862 has 16 divisors (see below), whose sum is σ = 4416000. Its totient is φ = 1093608.

The previous prime is 2563859. The next prime is 2563867. The reversal of 2563862 is 2683652.

It is a d-powerful number, because it can be written as 2¹⁸ + 5⁷ + 6 + 3⁹ + 8⁶ + 6⁸ + 2¹⁸ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2563867) 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, 4889 + ... + 5387.

It is an arithmetic number, because the mean of its divisors is an integer number (276000).

2^2563862 is an apocalyptic number.

2563862 is a deficient number, since it is larger than the sum of its proper divisors (1852138).

2563862 is a wasteful number, since it uses less digits than its factorization.

2563862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875.

The product of its digits is 17280, while the sum is 32.

The square root of 2563862 is about 1601.2064201720. The cubic root of 2563862 is about 136.8668320779.

The spelling of 2563862 in words is "two million, five hundred sixty-three thousand, eight hundred sixty-two".