2564205783 has 8 divisors (see below), whose sum is σ = 3511345008. Its totient is φ = 1663268544.

The previous prime is 2564205739. The next prime is 2564205793. The reversal of 2564205783 is 3875024652.

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

It is not a de Polignac number, because 2564205783 - 2⁶ = 2564205719 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2564205733) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11550366 + ... + 11550587.

It is an arithmetic number, because the mean of its divisors is an integer number (438918126).

Almost surely, 2^2564205783 is an apocalyptic number.

2564205783 is a deficient number, since it is larger than the sum of its proper divisors (947139225).

2564205783 is a wasteful number, since it uses less digits than its factorization.

2564205783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23100993.

The product of its (nonzero) digits is 403200, while the sum is 42.

The square root of 2564205783 is about 50637.9875488748. The cubic root of 2564205783 is about 1368.7294920219.

The spelling of 2564205783 in words is "two billion, five hundred sixty-four million, two hundred five thousand, seven hundred eighty-three".