55136551111 has 2 divisors, whose sum is σ = 55136551112. Its totient is φ = 55136551110.

The previous prime is 55136551097. The next prime is 55136551157. The reversal of 55136551111 is 11115563155.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55136551111 - 2¹¹ = 55136549063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55136551711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27568275555 + 27568275556.

It is an arithmetic number, because the mean of its divisors is an integer number (27568275556).

Almost surely, 2^55136551111 is an apocalyptic number.

55136551111 is a deficient number, since it is larger than the sum of its proper divisors (1).

55136551111 is an equidigital number, since it uses as much as digits as its factorization.

55136551111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11250, while the sum is 34.

The spelling of 55136551111 in words is "fifty-five billion, one hundred thirty-six million, five hundred fifty-one thousand, one hundred eleven".