2555561004111 has 12 divisors (see below), whose sum is σ = 3701648255760. Its totient is φ = 1698961631040.

The previous prime is 2555561004103. The next prime is 2555561004127. The reversal of 2555561004111 is 1114001655552.

2555561004111 is a `hidden beast` number, since 2 + 5 + 55 + 561 + 0 + 0 + 41 + 1 + 1 = 666.

It is not a de Polignac number, because 2555561004111 - 2³ = 2555561004103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2555561004131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 395472010 + ... + 395478471.

It is an arithmetic number, because the mean of its divisors is an integer number (308470687980).

Almost surely, 2^{2555561004111} is an apocalyptic number.

2555561004111 is a deficient number, since it is larger than the sum of its proper divisors (1146087251649).

2555561004111 is a wasteful number, since it uses less digits than its factorization.

2555561004111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790950846 (or 790950843 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 36.

Adding to 2555561004111 its reverse (1114001655552), we get a palindrome (3669562659663).

The spelling of 2555561004111 in words is "two trillion, five hundred fifty-five billion, five hundred sixty-one million, four thousand, one hundred eleven".