5155550551 has 2 divisors, whose sum is σ = 5155550552. Its totient is φ = 5155550550.

The previous prime is 5155550539. The next prime is 5155550557. The reversal of 5155550551 is 1550555515.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5155550551 - 2²⁵ = 5121996119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5155550551.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5155550557) 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, 2577775275 + 2577775276.

It is an arithmetic number, because the mean of its divisors is an integer number (2577775276).

Almost surely, 2^5155550551 is an apocalyptic number.

5155550551 is a deficient number, since it is larger than the sum of its proper divisors (1).

5155550551 is an equidigital number, since it uses as much as digits as its factorization.

5155550551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 78125, while the sum is 37.

The square root of 5155550551 is about 71802.1625788527. The cubic root of 5155550551 is about 1727.5276869826.

The spelling of 5155550551 in words is "five billion, one hundred fifty-five million, five hundred fifty thousand, five hundred fifty-one".