8402047553 has 2 divisors, whose sum is σ = 8402047554. Its totient is φ = 8402047552.

The previous prime is 8402047541. The next prime is 8402047561. The reversal of 8402047553 is 3557402048.

It is a happy number.

8402047553 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7443030529 + 959017024 = 86273^2 + 30968^2 .

It is a cyclic number.

It is not a de Polignac number, because 8402047553 - 2¹² = 8402043457 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (8402047253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4201023776 + 4201023777.

It is an arithmetic number, because the mean of its divisors is an integer number (4201023777).

Almost surely, 2^8402047553 is an apocalyptic number.

It is an amenable number.

8402047553 is a deficient number, since it is larger than the sum of its proper divisors (1).

8402047553 is an equidigital number, since it uses as much as digits as its factorization.

8402047553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 134400, while the sum is 38.

The square root of 8402047553 is about 91662.6835358861. The cubic root of 8402047553 is about 2032.9578688945.

The spelling of 8402047553 in words is "eight billion, four hundred two million, forty-seven thousand, five hundred fifty-three".