63825829 has 2 divisors, whose sum is σ = 63825830. Its totient is φ = 63825828.

The previous prime is 63825823. The next prime is 63825841. The reversal of 63825829 is 92852836.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38725729 + 25100100 = 6223^2 + 5010^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63825829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63825823) 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, 31912914 + 31912915.

It is an arithmetic number, because the mean of its divisors is an integer number (31912915).

Almost surely, 2^63825829 is an apocalyptic number.

It is an amenable number.

63825829 is a deficient number, since it is larger than the sum of its proper divisors (1).

63825829 is an equidigital number, since it uses as much as digits as its factorization.

63825829 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 207360, while the sum is 43.

The square root of 63825829 is about 7989.1068962682. The cubic root of 63825829 is about 399.6368140898.

The spelling of 63825829 in words is "sixty-three million, eight hundred twenty-five thousand, eight hundred twenty-nine".