63675559 has 2 divisors, whose sum is σ = 63675560. Its totient is φ = 63675558.

The previous prime is 63675533. The next prime is 63675587. The reversal of 63675559 is 95557636.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63675559 - 2¹⁹ = 63151271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63675959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31837779 + 31837780.

It is an arithmetic number, because the mean of its divisors is an integer number (31837780).

Almost surely, 2^63675559 is an apocalyptic number.

63675559 is a deficient number, since it is larger than the sum of its proper divisors (1).

63675559 is an equidigital number, since it uses as much as digits as its factorization.

63675559 is an evil number, because the sum of its binary digits is even.

The product of its digits is 850500, while the sum is 46.

The square root of 63675559 is about 7979.6966734331. The cubic root of 63675559 is about 399.3229358570.

The spelling of 63675559 in words is "sixty-three million, six hundred seventy-five thousand, five hundred fifty-nine".