63055553 has 4 divisors (see below), whose sum is σ = 68787888. Its totient is φ = 57323220.

The previous prime is 63055537. The next prime is 63055571. The reversal of 63055553 is 35555036.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 63055553 - 2⁴ = 63055537 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (63055523) 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 in 3 ways as a sum of consecutive naturals, for example, 2866151 + ... + 2866172.

It is an arithmetic number, because the mean of its divisors is an integer number (17196972).

Almost surely, 2^63055553 is an apocalyptic number.

It is an amenable number.

63055553 is a deficient number, since it is larger than the sum of its proper divisors (5732335).

63055553 is a wasteful number, since it uses less digits than its factorization.

63055553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5732334.

The product of its (nonzero) digits is 33750, while the sum is 32.

The square root of 63055553 is about 7940.7526721338. The cubic root of 63055553 is about 398.0226433419.

The spelling of 63055553 in words is "sixty-three million, fifty-five thousand, five hundred fifty-three".