63475553 has 2 divisors, whose sum is σ = 63475554. Its totient is φ = 63475552.

The previous prime is 63475547. The next prime is 63475583. The reversal of 63475553 is 35557436.

63475553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39337984 + 24137569 = 6272^2 + 4913^2 .

It is a cyclic number.

It is not a de Polignac number, because 63475553 - 2¹⁴ = 63459169 is a prime.

It is not a weakly prime, because it can be changed into another prime (63475513) 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, 31737776 + 31737777.

It is an arithmetic number, because the mean of its divisors is an integer number (31737777).

Almost surely, 2^63475553 is an apocalyptic number.

It is an amenable number.

63475553 is a deficient number, since it is larger than the sum of its proper divisors (1).

63475553 is an equidigital number, since it uses as much as digits as its factorization.

63475553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 189000, while the sum is 38.

The square root of 63475553 is about 7967.1546363805. The cubic root of 63475553 is about 398.9044039966.

The spelling of 63475553 in words is "sixty-three million, four hundred seventy-five thousand, five hundred fifty-three".