63520133 has 2 divisors, whose sum is σ = 63520134. Its totient is φ = 63520132.

The previous prime is 63520123. The next prime is 63520139. The reversal of 63520133 is 33102536.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43467649 + 20052484 = 6593^2 + 4478^2 .

It is a cyclic number.

It is not a de Polignac number, because 63520133 - 2⁶ = 63520069 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 63520099 and 63520108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63520139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31760066 + 31760067.

It is an arithmetic number, because the mean of its divisors is an integer number (31760067).

Almost surely, 2^63520133 is an apocalyptic number.

It is an amenable number.

63520133 is a deficient number, since it is larger than the sum of its proper divisors (1).

63520133 is an equidigital number, since it uses as much as digits as its factorization.

63520133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 23.

The square root of 63520133 is about 7969.9518819125. The cubic root of 63520133 is about 398.9977680082.

Adding to 63520133 its reverse (33102536), we get a palindrome (96622669).

The spelling of 63520133 in words is "sixty-three million, five hundred twenty thousand, one hundred thirty-three".