2565040143 has 16 divisors (see below), whose sum is σ = 3432101760. Its totient is φ = 1704015456.

The previous prime is 2565040123. The next prime is 2565040187. The reversal of 2565040143 is 3410405652.

It is not a de Polignac number, because 2565040143 - 2¹³ = 2565031951 is a prime.

It is a super-3 number, since 3×2565040143³ (a number of 29 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2565040143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2565040103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1434496 + ... + 1436282.

It is an arithmetic number, because the mean of its divisors is an integer number (214506360).

Almost surely, 2^2565040143 is an apocalyptic number.

2565040143 is a deficient number, since it is larger than the sum of its proper divisors (867061617).

2565040143 is a wasteful number, since it uses less digits than its factorization.

2565040143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3206.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 2565040143 is about 50646.2253578685. The cubic root of 2565040143 is about 1368.8779316549.

Adding to 2565040143 its reverse (3410405652), we get a palindrome (5975445795).

The spelling of 2565040143 in words is "two billion, five hundred sixty-five million, forty thousand, one hundred forty-three".