2563858 has 8 divisors (see below), whose sum is σ = 4195440. Its totient is φ = 1165380.

The previous prime is 2563849. The next prime is 2563859. The reversal of 2563858 is 8583652.

2563858 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

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

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (2563859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58248 + ... + 58291.

It is an arithmetic number, because the mean of its divisors is an integer number (524430).

2^2563858 is an apocalyptic number.

2563858 is a deficient number, since it is larger than the sum of its proper divisors (1631582).

2563858 is a wasteful number, since it uses less digits than its factorization.

2563858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116552.

The product of its digits is 57600, while the sum is 37.

The square root of 2563858 is about 1601.2051711133. The cubic root of 2563858 is about 136.8667609005.

It can be divided in two parts, 256 and 3858, that added together give a palindrome (4114).

The spelling of 2563858 in words is "two million, five hundred sixty-three thousand, eight hundred fifty-eight".