7945065553 has 2 divisors, whose sum is σ = 7945065554. Its totient is φ = 7945065552.

The previous prime is 7945065521. The next prime is 7945065563. The reversal of 7945065553 is 3555605497.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7097557009 + 847508544 = 84247^2 + 29112^2 .

It is a cyclic number.

It is not a de Polignac number, because 7945065553 - 2⁵ = 7945065521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7945065497 and 7945065506.

It is not a weakly prime, because it can be changed into another prime (7945065503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3972532776 + 3972532777.

It is an arithmetic number, because the mean of its divisors is an integer number (3972532777).

Almost surely, 2^7945065553 is an apocalyptic number.

It is an amenable number.

7945065553 is a deficient number, since it is larger than the sum of its proper divisors (1).

7945065553 is an equidigital number, since it uses as much as digits as its factorization.

7945065553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2835000, while the sum is 49.

The square root of 7945065553 is about 89135.0972008221. The cubic root of 7945065553 is about 1995.4116108090.

The spelling of 7945065553 in words is "seven billion, nine hundred forty-five million, sixty-five thousand, five hundred fifty-three".