2540165303 has 8 divisors (see below), whose sum is σ = 2829892800. Its totient is φ = 2263913568.

The previous prime is 2540165281. The next prime is 2540165317. The reversal of 2540165303 is 3035610452.

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

It is a cyclic number.

It is not a de Polignac number, because 2540165303 - 2⁶ = 2540165239 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2540165393) 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, 3368543 + ... + 3369296.

It is an arithmetic number, because the mean of its divisors is an integer number (353736600).

Almost surely, 2^2540165303 is an apocalyptic number.

2540165303 is a deficient number, since it is larger than the sum of its proper divisors (289727497).

2540165303 is a wasteful number, since it uses less digits than its factorization.

2540165303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6737881.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 2540165303 is about 50400.0526090995. The cubic root of 2540165303 is about 1364.4385876637.

Adding to 2540165303 its reverse (3035610452), we get a palindrome (5575775755).

The spelling of 2540165303 in words is "two billion, five hundred forty million, one hundred sixty-five thousand, three hundred three".