55503636011 has 2 divisors, whose sum is σ = 55503636012. Its totient is φ = 55503636010.

The previous prime is 55503635963. The next prime is 55503636017. The reversal of 55503636011 is 11063630555.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55503636011 - 2¹⁸ = 55503373867 is a prime.

It is a super-2 number, since 2×55503636011² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55503636017) 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, 27751818005 + 27751818006.

It is an arithmetic number, because the mean of its divisors is an integer number (27751818006).

Almost surely, 2^55503636011 is an apocalyptic number.

55503636011 is a deficient number, since it is larger than the sum of its proper divisors (1).

55503636011 is an equidigital number, since it uses as much as digits as its factorization.

55503636011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40500, while the sum is 35.

The spelling of 55503636011 in words is "fifty-five billion, five hundred three million, six hundred thirty-six thousand, eleven".