63242251 has 2 divisors, whose sum is σ = 63242252. Its totient is φ = 63242250.

The previous prime is 63242239. The next prime is 63242321. The reversal of 63242251 is 15224236.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63242251 - 2⁵ = 63242219 is a prime.

It is not a weakly prime, because it can be changed into another prime (63242651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31621125 + 31621126.

It is an arithmetic number, because the mean of its divisors is an integer number (31621126).

Almost surely, 2^63242251 is an apocalyptic number.

63242251 is a deficient number, since it is larger than the sum of its proper divisors (1).

63242251 is an equidigital number, since it uses as much as digits as its factorization.

63242251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 25.

The square root of 63242251 is about 7952.4996699151. The cubic root of 63242251 is about 398.4150846526.

Adding to 63242251 its reverse (15224236), we get a palindrome (78466487).

The spelling of 63242251 in words is "sixty-three million, two hundred forty-two thousand, two hundred fifty-one".