2545533612111 has 32 divisors (see below), whose sum is σ = 4104217315840. Its totient is φ = 1370893123584.

The previous prime is 2545533612109. The next prime is 2545533612119. The reversal of 2545533612111 is 1112163355452.

It is not a de Polignac number, because 2545533612111 - 2¹ = 2545533612109 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2545533612111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2545533612119) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16450930 + ... + 16604943.

It is an arithmetic number, because the mean of its divisors is an integer number (128256791120).

Almost surely, 2^{2545533612111} is an apocalyptic number.

2545533612111 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2545533612111 is a deficient number, since it is larger than the sum of its proper divisors (1558683703729).

2545533612111 is a wasteful number, since it uses less digits than its factorization.

2545533612111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33056095.

The product of its digits is 108000, while the sum is 39.

Adding to 2545533612111 its reverse (1112163355452), we get a palindrome (3657696967563).

The spelling of 2545533612111 in words is "two trillion, five hundred forty-five billion, five hundred thirty-three million, six hundred twelve thousand, one hundred eleven".