63540089 has 2 divisors, whose sum is σ = 63540090. Its totient is φ = 63540088.

The previous prime is 63540079. The next prime is 63540143. The reversal of 63540089 is 98004536.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63282025 + 258064 = 7955^2 + 508^2 .

It is a cyclic number.

It is not a de Polignac number, because 63540089 - 2¹⁶ = 63474553 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (63540079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31770044 + 31770045.

It is an arithmetic number, because the mean of its divisors is an integer number (31770045).

Almost surely, 2^63540089 is an apocalyptic number.

It is an amenable number.

63540089 is a deficient number, since it is larger than the sum of its proper divisors (1).

63540089 is an equidigital number, since it uses as much as digits as its factorization.

63540089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 63540089 is about 7971.2037359485. The cubic root of 63540089 is about 399.0395477579.

The spelling of 63540089 in words is "sixty-three million, five hundred forty thousand, eighty-nine".