2563675405 has 4 divisors (see below), whose sum is σ = 3076410492. Its totient is φ = 2050940320.

The previous prime is 2563675403. The next prime is 2563675421. The reversal of 2563675405 is 5045763652.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1303354404 + 1260321001 = 36102^2 + 35501^2 .

It is not a de Polignac number, because 2563675405 - 2¹ = 2563675403 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2563675403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 256367536 + ... + 256367545.

It is an arithmetic number, because the mean of its divisors is an integer number (769102623).

Almost surely, 2^2563675405 is an apocalyptic number.

It is an amenable number.

2563675405 is a deficient number, since it is larger than the sum of its proper divisors (512735087).

2563675405 is an equidigital number, since it uses as much as digits as its factorization.

2563675405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512735086.

The product of its (nonzero) digits is 756000, while the sum is 43.

The square root of 2563675405 is about 50632.7503203213. The cubic root of 2563675405 is about 1368.6351165923.

The spelling of 2563675405 in words is "two billion, five hundred sixty-three million, six hundred seventy-five thousand, four hundred five".