63753881 has 2 divisors, whose sum is σ = 63753882. Its totient is φ = 63753880.

The previous prime is 63753853. The next prime is 63753941. The reversal of 63753881 is 18835736.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60918025 + 2835856 = 7805^2 + 1684^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63753881 is a prime.

It is a super-2 number, since 2×63753881² = 8129114685124322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (63753841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31876940 + 31876941.

It is an arithmetic number, because the mean of its divisors is an integer number (31876941).

Almost surely, 2^63753881 is an apocalyptic number.

It is an amenable number.

63753881 is a deficient number, since it is larger than the sum of its proper divisors (1).

63753881 is an equidigital number, since it uses as much as digits as its factorization.

63753881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 41.

The square root of 63753881 is about 7984.6027452842. The cubic root of 63753881 is about 399.4865933994.

The spelling of 63753881 in words is "sixty-three million, seven hundred fifty-three thousand, eight hundred eighty-one".