7945555507 has 2 divisors, whose sum is σ = 7945555508. Its totient is φ = 7945555506.

The previous prime is 7945555481. The next prime is 7945555573. The reversal of 7945555507 is 7055555497.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7945555507 - 2⁷ = 7945555379 is a prime.

It is not a weakly prime, because it can be changed into another prime (7945555577) 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, 3972777753 + 3972777754.

It is an arithmetic number, because the mean of its divisors is an integer number (3972777754).

Almost surely, 2^7945555507 is an apocalyptic number.

7945555507 is a deficient number, since it is larger than the sum of its proper divisors (1).

7945555507 is an equidigital number, since it uses as much as digits as its factorization.

7945555507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5512500, while the sum is 52.

The square root of 7945555507 is about 89137.8455371230. The cubic root of 7945555507 is about 1995.4526274542.

The spelling of 7945555507 in words is "seven billion, nine hundred forty-five million, five hundred fifty-five thousand, five hundred seven".