2564267 has 4 divisors (see below), whose sum is σ = 2652720. Its totient is φ = 2475816.

The previous prime is 2564251. The next prime is 2564279. The reversal of 2564267 is 7624652.

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

It is a cyclic number.

It is not a de Polignac number, because 2564267 - 2⁴ = 2564251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2564207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44183 + ... + 44240.

It is an arithmetic number, because the mean of its divisors is an integer number (663180).

2^2564267 is an apocalyptic number.

2564267 is a deficient number, since it is larger than the sum of its proper divisors (88453).

2564267 is an equidigital number, since it uses as much as digits as its factorization.

2564267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88452.

The product of its digits is 20160, while the sum is 32.

The square root of 2564267 is about 1601.3328823202. The cubic root of 2564267 is about 136.8740384133.

The spelling of 2564267 in words is "two million, five hundred sixty-four thousand, two hundred sixty-seven".