55577055511 has 2 divisors, whose sum is σ = 55577055512. Its totient is φ = 55577055510.

The previous prime is 55577055493. The next prime is 55577055563. The reversal of 55577055511 is 11555077555.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55577055511 - 2⁷ = 55577055383 is a prime.

It is a super-2 number, since 2×55577055511² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55577055011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27788527755 + 27788527756.

It is an arithmetic number, because the mean of its divisors is an integer number (27788527756).

Almost surely, 2^55577055511 is an apocalyptic number.

55577055511 is a deficient number, since it is larger than the sum of its proper divisors (1).

55577055511 is an equidigital number, since it uses as much as digits as its factorization.

55577055511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 765625, while the sum is 46.

The spelling of 55577055511 in words is "fifty-five billion, five hundred seventy-seven million, fifty-five thousand, five hundred eleven".