2564207755 has 8 divisors (see below), whose sum is σ = 3100539024. Its totient is φ = 2035706400.

The previous prime is 2564207743. The next prime is 2564207759. The reversal of 2564207755 is 5577024652.

2564207755 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2564207755 - 2⁷ = 2564207627 is a prime.

It is a super-2 number, since 2×2564207755² = 13150322821604280050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2564207759) 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, 1956756 + ... + 1958065.

It is an arithmetic number, because the mean of its divisors is an integer number (387567378).

Almost surely, 2^2564207755 is an apocalyptic number.

2564207755 is a deficient number, since it is larger than the sum of its proper divisors (536331269).

2564207755 is a wasteful number, since it uses less digits than its factorization.

2564207755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3914957.

The product of its (nonzero) digits is 588000, while the sum is 43.

The square root of 2564207755 is about 50638.0070204190. The cubic root of 2564207755 is about 1368.7298428952.

The spelling of 2564207755 in words is "two billion, five hundred sixty-four million, two hundred seven thousand, seven hundred fifty-five".