2555106551 has 2 divisors, whose sum is σ = 2555106552. Its totient is φ = 2555106550.

The previous prime is 2555106527. The next prime is 2555106577. The reversal of 2555106551 is 1556015552.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2555106551 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2555105551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1277553275 + 1277553276.

It is an arithmetic number, because the mean of its divisors is an integer number (1277553276).

Almost surely, 2^2555106551 is an apocalyptic number.

2555106551 is a deficient number, since it is larger than the sum of its proper divisors (1).

2555106551 is an equidigital number, since it uses as much as digits as its factorization.

2555106551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37500, while the sum is 35.

The square root of 2555106551 is about 50548.0617927137. The cubic root of 2555106551 is about 1367.1085680318.

Subtracting from 2555106551 its reverse (1556015552), we obtain a palindrome (999090999).

The spelling of 2555106551 in words is "two billion, five hundred fifty-five million, one hundred six thousand, five hundred fifty-one".