2564433 has 32 divisors (see below), whose sum is σ = 4158720. Its totient is φ = 1555200.

The previous prime is 2564423. The next prime is 2564447. The reversal of 2564433 is 3344652.

It is not a de Polignac number, because 2564433 - 2⁶ = 2564369 is a prime.

It is a super-2 number, since 2×2564433² = 13152633222978, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a d-powerful number, because it can be written as 2¹⁹ + 5⁹ + 6⁵ + 4⁴ + 4⁴ + 3⁹ + 3¹⁰ .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2564397 and 2564406.

It is not an unprimeable number, because it can be changed into a prime (2564423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16908 + ... + 17058.

It is an arithmetic number, because the mean of its divisors is an integer number (129960).

2^2564433 is an apocalyptic number.

It is an amenable number.

2564433 is a deficient number, since it is larger than the sum of its proper divisors (1594287).

2564433 is a wasteful number, since it uses less digits than its factorization.

2564433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214 (or 208 counting only the distinct ones).

The product of its digits is 8640, while the sum is 27.

The square root of 2564433 is about 1601.3847133028. The cubic root of 2564433 is about 136.8769919020.

The spelling of 2564433 in words is "two million, five hundred sixty-four thousand, four hundred thirty-three".