2564541803 has 8 divisors (see below), whose sum is σ = 2595986496. Its totient is φ = 2533216000.

The previous prime is 2564541787. The next prime is 2564541821. The reversal of 2564541803 is 3081454652.

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 2564541803 - 2⁴ = 2564541787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2564541403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14075 + ... + 72987.

It is an arithmetic number, because the mean of its divisors is an integer number (324498312).

Almost surely, 2^2564541803 is an apocalyptic number.

2564541803 is a deficient number, since it is larger than the sum of its proper divisors (31444693).

2564541803 is a wasteful number, since it uses less digits than its factorization.

2564541803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59445.

The product of its (nonzero) digits is 115200, while the sum is 38.

The square root of 2564541803 is about 50641.3053050571. The cubic root of 2564541803 is about 1368.7892766667.

The spelling of 2564541803 in words is "two billion, five hundred sixty-four million, five hundred forty-one thousand, eight hundred three".