2564373 has 16 divisors (see below), whose sum is σ = 4113920. Its totient is φ = 1388016.

The previous prime is 2564369. The next prime is 2564381. The reversal of 2564373 is 3734652.

It is not a de Polignac number, because 2564373 - 2² = 2564369 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2564373.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2564323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2815 + ... + 3612.

It is an arithmetic number, because the mean of its divisors is an integer number (257120).

2^2564373 is an apocalyptic number.

It is an amenable number.

2564373 is a deficient number, since it is larger than the sum of its proper divisors (1549547).

2564373 is a wasteful number, since it uses less digits than its factorization.

2564373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6456.

The product of its digits is 15120, while the sum is 30.

The square root of 2564373 is about 1601.3659794063. The cubic root of 2564373 is about 136.8759243907.

The spelling of 2564373 in words is "two million, five hundred sixty-four thousand, three hundred seventy-three".