5255445551 has 2 divisors, whose sum is σ = 5255445552. Its totient is φ = 5255445550.

The previous prime is 5255445521. The next prime is 5255445571. The reversal of 5255445551 is 1555445525.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5255445551 - 2⁶ = 5255445487 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 5255445499 and 5255445508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5255445521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2627722775 + 2627722776.

It is an arithmetic number, because the mean of its divisors is an integer number (2627722776).

Almost surely, 2^5255445551 is an apocalyptic number.

5255445551 is a deficient number, since it is larger than the sum of its proper divisors (1).

5255445551 is an equidigital number, since it uses as much as digits as its factorization.

5255445551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 500000, while the sum is 41.

The square root of 5255445551 is about 72494.4518635737. The cubic root of 5255445551 is about 1738.6140316335.

The spelling of 5255445551 in words is "five billion, two hundred fifty-five million, four hundred forty-five thousand, five hundred fifty-one".