63861253 has 2 divisors, whose sum is σ = 63861254. Its totient is φ = 63861252.

The previous prime is 63861241. The next prime is 63861257. The reversal of 63861253 is 35216836.

63861253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53479969 + 10381284 = 7313^2 + 3222^2 .

It is a cyclic number.

It is not a de Polignac number, because 63861253 - 2⁵ = 63861221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63861257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31930626 + 31930627.

It is an arithmetic number, because the mean of its divisors is an integer number (31930627).

Almost surely, 2^63861253 is an apocalyptic number.

It is an amenable number.

63861253 is a deficient number, since it is larger than the sum of its proper divisors (1).

63861253 is an equidigital number, since it uses as much as digits as its factorization.

63861253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 34.

The square root of 63861253 is about 7991.3236075133. The cubic root of 63861253 is about 399.7107346143.

The spelling of 63861253 in words is "sixty-three million, eight hundred sixty-one thousand, two hundred fifty-three".