63481801 has 2 divisors, whose sum is σ = 63481802. Its totient is φ = 63481800.

The previous prime is 63481729. The next prime is 63481807. The reversal of 63481801 is 10818436.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55353600 + 8128201 = 7440^2 + 2851^2 .

It is a cyclic number.

It is not a de Polignac number, because 63481801 - 2⁹ = 63481289 is a prime.

It is not a weakly prime, because it can be changed into another prime (63481807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31740900 + 31740901.

It is an arithmetic number, because the mean of its divisors is an integer number (31740901).

Almost surely, 2^63481801 is an apocalyptic number.

It is an amenable number.

63481801 is a deficient number, since it is larger than the sum of its proper divisors (1).

63481801 is an equidigital number, since it uses as much as digits as its factorization.

63481801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 63481801 is about 7967.5467366059. The cubic root of 63481801 is about 398.9174918329.

The spelling of 63481801 in words is "sixty-three million, four hundred eighty-one thousand, eight hundred one".