2563279 has 8 divisors (see below), whose sum is σ = 2656080. Its totient is φ = 2472000.

The previous prime is 2563261. The next prime is 2563291. The reversal of 2563279 is 9723652.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2563279 - 2⁷ = 2563151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2563229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3832 + ... + 4450.

It is an arithmetic number, because the mean of its divisors is an integer number (332010).

2^2563279 is an apocalyptic number.

2563279 is a deficient number, since it is larger than the sum of its proper divisors (92801).

2563279 is a wasteful number, since it uses less digits than its factorization.

2563279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761.

The product of its digits is 22680, while the sum is 34.

The square root of 2563279 is about 1601.0243595898. The cubic root of 2563279 is about 136.8564571810.

The spelling of 2563279 in words is "two million, five hundred sixty-three thousand, two hundred seventy-nine".