63055421 has 24 divisors (see below), whose sum is σ = 75419424. Its totient is φ = 52253760.

The previous prime is 63055393. The next prime is 63055427. The reversal of 63055421 is 12455036.

63055421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-63055421 is a prime.

It is a super-2 number, since 2×63055421² = 7951972234974482, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63055427) 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 in 23 ways as a sum of consecutive naturals, for example, 198755 + ... + 199071.

It is an arithmetic number, because the mean of its divisors is an integer number (3142476).

Almost surely, 2^63055421 is an apocalyptic number.

It is an amenable number.

63055421 is a deficient number, since it is larger than the sum of its proper divisors (12364003).

63055421 is a wasteful number, since it uses less digits than its factorization.

63055421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461 (or 448 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 63055421 is about 7940.7443605748. The cubic root of 63055421 is about 398.0223656026.

The spelling of 63055421 in words is "sixty-three million, fifty-five thousand, four hundred twenty-one".