5551144511 has 16 divisors (see below), whose sum is σ = 6110421408. Its totient is φ = 5001100800.

The previous prime is 5551144493. The next prime is 5551144513. The reversal of 5551144511 is 1154411555.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5551144511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5551144513) 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, 981251 + ... + 986891.

It is an arithmetic number, because the mean of its divisors is an integer number (381901338).

Almost surely, 2^5551144511 is an apocalyptic number.

5551144511 is a deficient number, since it is larger than the sum of its proper divisors (559276897).

5551144511 is a wasteful number, since it uses less digits than its factorization.

5551144511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6442.

The product of its digits is 10000, while the sum is 32.

The square root of 5551144511 is about 74506.0031876627. The cubic root of 5551144511 is about 1770.6287477611.

The spelling of 5551144511 in words is "five billion, five hundred fifty-one million, one hundred forty-four thousand, five hundred eleven".