2563006 has 4 divisors (see below), whose sum is σ = 3844512. Its totient is φ = 1281502.

The previous prime is 2563003. The next prime is 2563007. The reversal of 2563006 is 6003652.

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

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2563003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 640750 + ... + 640753.

It is an arithmetic number, because the mean of its divisors is an integer number (961128).

2^2563006 is an apocalyptic number.

2563006 is a deficient number, since it is larger than the sum of its proper divisors (1281506).

2563006 is a wasteful number, since it uses less digits than its factorization.

2563006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1281505.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 2563006 is about 1600.9390994038. The cubic root of 2563006 is about 136.8515984123.

Adding to 2563006 its reverse (6003652), we get a palindrome (8566658).

The spelling of 2563006 in words is "two million, five hundred sixty-three thousand, six".