2540555355511 has 16 divisors (see below), whose sum is σ = 2588951661568. Its totient is φ = 2492379590400.

The previous prime is 2540555355487. The next prime is 2540555355539. The reversal of 2540555355511 is 1155535550452.

It is a cyclic number.

It is not a de Polignac number, because 2540555355511 - 2²⁷ = 2540421137783 is a prime.

It is a super-2 number, since 2×2540555355511² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2540555355211) 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, 141313555 + ... + 141331531.

It is an arithmetic number, because the mean of its divisors is an integer number (161809478848).

Almost surely, 2^{2540555355511} is an apocalyptic number.

2540555355511 is a deficient number, since it is larger than the sum of its proper divisors (48396306057).

2540555355511 is a wasteful number, since it uses less digits than its factorization.

2540555355511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23962.

The product of its (nonzero) digits is 1875000, while the sum is 46.

The spelling of 2540555355511 in words is "two trillion, five hundred forty billion, five hundred fifty-five million, three hundred fifty-five thousand, five hundred eleven".