63211601 has 2 divisors, whose sum is σ = 63211602. Its totient is φ = 63211600.

The previous prime is 63211579. The next prime is 63211609. The reversal of 63211601 is 10611236.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57456400 + 5755201 = 7580^2 + 2399^2 .

It is a cyclic number.

It is not a de Polignac number, because 63211601 - 2¹⁴ = 63195217 is a prime.

It is not a weakly prime, because it can be changed into another prime (63211609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31605800 + 31605801.

It is an arithmetic number, because the mean of its divisors is an integer number (31605801).

Almost surely, 2^63211601 is an apocalyptic number.

It is an amenable number.

63211601 is a deficient number, since it is larger than the sum of its proper divisors (1).

63211601 is an equidigital number, since it uses as much as digits as its factorization.

63211601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 63211601 is about 7950.5723693329. The cubic root of 63211601 is about 398.3507110447.

Adding to 63211601 its reverse (10611236), we get a palindrome (73822837).

The spelling of 63211601 in words is "sixty-three million, two hundred eleven thousand, six hundred one".