2545505243011 has 4 divisors (see below), whose sum is σ = 2545555493992. Its totient is φ = 2545454992032.

The previous prime is 2545505243003. The next prime is 2545505243087. The reversal of 2545505243011 is 1103425055452.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2545505243011 - 2³ = 2545505243003 is a prime.

It is a super-2 number, since 2×2545505243011² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2545505543011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25049430 + ... + 25150843.

It is an arithmetic number, because the mean of its divisors is an integer number (636388873498).

Almost surely, 2^{2545505243011} is an apocalyptic number.

2545505243011 is a deficient number, since it is larger than the sum of its proper divisors (50250981).

2545505243011 is an equidigital number, since it uses as much as digits as its factorization.

2545505243011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50250980.

The product of its (nonzero) digits is 120000, while the sum is 37.

The spelling of 2545505243011 in words is "two trillion, five hundred forty-five billion, five hundred five million, two hundred forty-three thousand, eleven".