5645566051 has 2 divisors, whose sum is σ = 5645566052. Its totient is φ = 5645566050.

The previous prime is 5645566027. The next prime is 5645566081. The reversal of 5645566051 is 1506655465.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5645566051 - 2²³ = 5637177443 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5645565989 and 5645566007.

It is not a weakly prime, because it can be changed into another prime (5645566081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2822783025 + 2822783026.

It is an arithmetic number, because the mean of its divisors is an integer number (2822783026).

Almost surely, 2^5645566051 is an apocalyptic number.

5645566051 is a deficient number, since it is larger than the sum of its proper divisors (1).

5645566051 is an equidigital number, since it uses as much as digits as its factorization.

5645566051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540000, while the sum is 43.

The square root of 5645566051 is about 75136.9819130367. The cubic root of 5645566051 is about 1780.6114604881.

The spelling of 5645566051 in words is "five billion, six hundred forty-five million, five hundred sixty-six thousand, fifty-one".