2645330551 has 2 divisors, whose sum is σ = 2645330552. Its totient is φ = 2645330550.

The previous prime is 2645330539. The next prime is 2645330581. The reversal of 2645330551 is 1550335462.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2645330551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2645330531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1322665275 + 1322665276.

It is an arithmetic number, because the mean of its divisors is an integer number (1322665276).

Almost surely, 2^2645330551 is an apocalyptic number.

2645330551 is a deficient number, since it is larger than the sum of its proper divisors (1).

2645330551 is an equidigital number, since it uses as much as digits as its factorization.

2645330551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54000, while the sum is 34.

The square root of 2645330551 is about 51432.7770103851. Note that the first 3 decimals coincide. The cubic root of 2645330551 is about 1383.0142318240.

The spelling of 2645330551 in words is "two billion, six hundred forty-five million, three hundred thirty thousand, five hundred fifty-one".