63055381 has 2 divisors, whose sum is σ = 63055382. Its totient is φ = 63055380.

The previous prime is 63055337. The next prime is 63055387. The reversal of 63055381 is 18355036.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50339025 + 12716356 = 7095^2 + 3566^2 .

It is a cyclic number.

It is not a de Polignac number, because 63055381 - 2¹⁵ = 63022613 is a prime.

It is a super-2 number, since 2×63055381² = 7951962146110322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63055387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31527690 + 31527691.

It is an arithmetic number, because the mean of its divisors is an integer number (31527691).

Almost surely, 2^63055381 is an apocalyptic number.

It is an amenable number.

63055381 is a deficient number, since it is larger than the sum of its proper divisors (1).

63055381 is an equidigital number, since it uses as much as digits as its factorization.

63055381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 63055381 is about 7940.7418419188. The cubic root of 63055381 is about 398.0222814390.

It can be divided in two parts, 63055 and 381, that added together give a palindrome (63436).

The spelling of 63055381 in words is "sixty-three million, fifty-five thousand, three hundred eighty-one".