2540313533265 has 16 divisors (see below), whose sum is σ = 4163635840896. Its totient is φ = 1321789155200.

The previous prime is 2540313533249. The next prime is 2540313533269. The reversal of 2540313533265 is 5623353130452.

It is not a de Polignac number, because 2540313533265 - 2⁴ = 2540313533249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2540313533269) 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, 2065294941 + ... + 2065296170.

It is an arithmetic number, because the mean of its divisors is an integer number (260227240056).

Almost surely, 2^{2540313533265} is an apocalyptic number.

It is an amenable number.

2540313533265 is a deficient number, since it is larger than the sum of its proper divisors (1623322307631).

2540313533265 is a wasteful number, since it uses less digits than its factorization.

2540313533265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4130591160.

The product of its (nonzero) digits is 972000, while the sum is 42.

The spelling of 2540313533265 in words is "two trillion, five hundred forty billion, three hundred thirteen million, five hundred thirty-three thousand, two hundred sixty-five".