63507601 has 2 divisors, whose sum is σ = 63507602. Its totient is φ = 63507600.

The previous prime is 63507581. The next prime is 63507611. The reversal of 63507601 is 10670536.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62031376 + 1476225 = 7876^2 + 1215^2 .

It is a cyclic number.

It is not a de Polignac number, because 63507601 - 2⁵ = 63507569 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63507601.

It is not a weakly prime, because it can be changed into another prime (63507611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31753800 + 31753801.

It is an arithmetic number, because the mean of its divisors is an integer number (31753801).

Almost surely, 2^63507601 is an apocalyptic number.

It is an amenable number.

63507601 is a deficient number, since it is larger than the sum of its proper divisors (1).

63507601 is an equidigital number, since it uses as much as digits as its factorization.

63507601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 63507601 is about 7969.1656401408. The cubic root of 63507601 is about 398.9715266227.

The spelling of 63507601 in words is "sixty-three million, five hundred seven thousand, six hundred one".