63520207 has 2 divisors, whose sum is σ = 63520208. Its totient is φ = 63520206.

The previous prime is 63520189. The next prime is 63520217. The reversal of 63520207 is 70202536.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63520207 - 2¹⁵ = 63487439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63520217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31760103 + 31760104.

It is an arithmetic number, because the mean of its divisors is an integer number (31760104).

Almost surely, 2^63520207 is an apocalyptic number.

63520207 is a deficient number, since it is larger than the sum of its proper divisors (1).

63520207 is an equidigital number, since it uses as much as digits as its factorization.

63520207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 63520207 is about 7969.9565243482. The cubic root of 63520207 is about 398.9979229503.

The spelling of 63520207 in words is "sixty-three million, five hundred twenty thousand, two hundred seven".