2565300401 has 4 divisors (see below), whose sum is σ = 2581640052. Its totient is φ = 2548960752.

The previous prime is 2565300389. The next prime is 2565300431. The reversal of 2565300401 is 1040035652.

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 516380176 + 2048920225 = 22724^2 + 45265^2 .

It is a cyclic number.

It is not a de Polignac number, because 2565300401 - 2⁶ = 2565300337 is a prime.

It is a super-3 number, since 3×2565300401³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2565300431) 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, 8169590 + ... + 8169903.

It is an arithmetic number, because the mean of its divisors is an integer number (645410013).

Almost surely, 2^2565300401 is an apocalyptic number.

It is an amenable number.

2565300401 is a deficient number, since it is larger than the sum of its proper divisors (16339651).

2565300401 is a wasteful number, since it uses less digits than its factorization.

2565300401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16339650.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 2565300401 is about 50648.7946648289. The cubic root of 2565300401 is about 1368.9242271466.

The spelling of 2565300401 in words is "two billion, five hundred sixty-five million, three hundred thousand, four hundred one".