5555610551 has 2 divisors, whose sum is σ = 5555610552. Its totient is φ = 5555610550.

The previous prime is 5555610517. The next prime is 5555610553. The reversal of 5555610551 is 1550165555.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5555610551 - 2²⁶ = 5488501687 is a prime.

It is a Sophie Germain prime.

Together with 5555610553, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5555610553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2777805275 + 2777805276.

It is an arithmetic number, because the mean of its divisors is an integer number (2777805276).

Almost surely, 2^5555610551 is an apocalyptic number.

5555610551 is a deficient number, since it is larger than the sum of its proper divisors (1).

5555610551 is an equidigital number, since it uses as much as digits as its factorization.

5555610551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93750, while the sum is 38.

The square root of 5555610551 is about 74535.9681697367. The cubic root of 5555610551 is about 1771.1034594231.

The spelling of 5555610551 in words is "five billion, five hundred fifty-five million, six hundred ten thousand, five hundred fifty-one".