55111055601 has 16 divisors (see below), whose sum is σ = 84025750400. Its totient is φ = 31474407168.

The previous prime is 55111055599. The next prime is 55111055603. The reversal of 55111055601 is 10655011155.

It is an interprime number because it is at equal distance from previous prime (55111055599) and next prime (55111055603).

It is not a de Polignac number, because 55111055601 - 2¹ = 55111055599 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55111055603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 695896 + ... + 771033.

It is an arithmetic number, because the mean of its divisors is an integer number (5251609400).

Almost surely, 2^55111055601 is an apocalyptic number.

It is an amenable number.

55111055601 is a deficient number, since it is larger than the sum of its proper divisors (28914694799).

55111055601 is a wasteful number, since it uses less digits than its factorization.

55111055601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1468728.

The product of its (nonzero) digits is 3750, while the sum is 30.

Adding to 55111055601 its reverse (10655011155), we get a palindrome (65766066756).

The spelling of 55111055601 in words is "fifty-five billion, one hundred eleven million, fifty-five thousand, six hundred one".