63433125251 has 2 divisors, whose sum is σ = 63433125252. Its totient is φ = 63433125250.

The previous prime is 63433125247. The next prime is 63433125269. The reversal of 63433125251 is 15252133436.

It is a happy number.

63433125251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63433125251 - 2² = 63433125247 is a prime.

It is a super-2 number, since 2×63433125251² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (63433125211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31716562625 + 31716562626.

It is an arithmetic number, because the mean of its divisors is an integer number (31716562626).

Almost surely, 2^63433125251 is an apocalyptic number.

63433125251 is a deficient number, since it is larger than the sum of its proper divisors (1).

63433125251 is an equidigital number, since it uses as much as digits as its factorization.

63433125251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64800, while the sum is 35.

Adding to 63433125251 its reverse (15252133436), we get a palindrome (78685258687).

The spelling of 63433125251 in words is "sixty-three billion, four hundred thirty-three million, one hundred twenty-five thousand, two hundred fifty-one".