55563356111 has 2 divisors, whose sum is σ = 55563356112. Its totient is φ = 55563356110.

The previous prime is 55563356039. The next prime is 55563356117. The reversal of 55563356111 is 11165336555.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55563356111 - 2¹⁸ = 55563093967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55563356117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27781678055 + 27781678056.

It is an arithmetic number, because the mean of its divisors is an integer number (27781678056).

Almost surely, 2^55563356111 is an apocalyptic number.

55563356111 is a deficient number, since it is larger than the sum of its proper divisors (1).

55563356111 is an equidigital number, since it uses as much as digits as its factorization.

55563356111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 202500, while the sum is 41.

The spelling of 55563356111 in words is "fifty-five billion, five hundred sixty-three million, three hundred fifty-six thousand, one hundred eleven".