5554555511 has 2 divisors, whose sum is σ = 5554555512. Its totient is φ = 5554555510.

The previous prime is 5554555493. The next prime is 5554555543. The reversal of 5554555511 is 1155554555.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5554555511 - 2²⁶ = 5487446647 is a prime.

It is a super-2 number, since 2×5554555511² = 61706173849560942242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5554555211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2777277755 + 2777277756.

It is an arithmetic number, because the mean of its divisors is an integer number (2777277756).

Almost surely, 2^5554555511 is an apocalyptic number.

5554555511 is a deficient number, since it is larger than the sum of its proper divisors (1).

5554555511 is an equidigital number, since it uses as much as digits as its factorization.

5554555511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 312500, while the sum is 41.

The square root of 5554555511 is about 74528.8904452495. The cubic root of 5554555511 is about 1770.9913383355.

The spelling of 5554555511 in words is "five billion, five hundred fifty-four million, five hundred fifty-five thousand, five hundred eleven".